10. Hardness:

Which is harshness, rigidity, roughness and that is when softness, mercy and humility leaves the heart.

لِّيَجْعَلَ مَا يُلْقِى ٱلشَّيْطَٰنُ فِتْنَةًۭ لِّلَّذِينَ فِى قُلُوبِهِم مَّرَضٌۭ وَٱلْقَاسِيَةِ قُلُوبُهُمْ ۗ وَإِنَّ ٱلظَّٰلِمِينَ لَفِى شِقَاقٍۭ بَعِيدٍۢ

That He (Allah) may make what is thrown in by Shaitan (Satan) a trial for those in whose hearts is a disease (of hypocrisy and disbelief) and whose hearts are hardened. And certainly, the Zalimun (polytheists and wrong-doers, etc.) are in an opposition far-off (from the truth against Allah's Messenger and the believers). (Al-Hajj 53)

أَفَمَن شَرَحَ ٱللَّهُ صَدْرَهُۥ لِلْإِسْلَٰمِ فَهُوَ عَلَىٰ نُورٍۢ مِّن رَّبِّهِۦ ۚ فَوَيْلٌۭ لِّلْقَٰسِيَةِ قُلُوبُهُم مِّن ذِكْرِ ٱللَّهِ ۚ أُو۟لَٰٓئِكَ فِى ضَلَٰلٍۢ مُّبِينٍ

Is he whose breast Allah has opened to Islam, so that he is in light from His Lord (as he who is non-Muslim)? So, woe to those whose hearts are hardened against remembrance of Allah! They are in plain error! (Al-Zumar 22)

See Also Al-Baqarah 74, Al-Maaidah 13, Al-An'aam 43, Al-Hadeed 16.

Ibn 'Umar (رضي الله عنه) said that Messenger of Allah (صلى الله عليه وسلم ) said: "Do not talk for long without remembering Allah, for talking much without remembering Allah is hardness of the heart. The most distant among man from Allah swt is one with a hardened heart." (Tirmidhi and graded sahih by albani)

11. Deviation:

That is inclining towards astray ness after guidance, which is from the disease of the heart.

فَأَمَّا ٱلَّذِينَ فِى قُلُوبِهِمْ زَيْغٌۭ فَيَتَّبِعُونَ مَا تَشَٰبَهَ مِنْهُ

So as for those in whose hearts there is a deviation (from the truth) they follow that which is not entirely clear thereof, (Aal Imran 7)

لَّقَد تَّابَ ٱللَّهُ عَلَى ٱلنَّبِىِّ وَٱلْمُهَٰجِرِينَ وَٱلْأَنصَارِ ٱلَّذِينَ ٱتَّبَعُوهُ فِى سَاعَةِ ٱلْعُسْرَةِ مِنۢ بَعْدِ مَا كَادَ يَزِيغُ قُلُوبُ فَرِيقٍۢ مِّنْهُمْ ثُمَّ تَابَ عَلَيْهِمْ ۚ إِنَّهُۥ بِهِمْ رَءُوفٌۭ رَّحِيمٌۭ

Allah has forgiven the Prophet (SAW), the Muhajirun (Muslim emigrants who left their homes and came to Al-Madinah) and the Ansar (Muslims of Al-Madinah) who followed him (Muhammad SAW) in the time of distress (Tabuk expedition, etc.), after the hearts of a party of them had nearly deviated (from the Right Path), but He accepted their repentance. Certainly, He is unto them full of Kindness, Most Merciful. (Al-Tawbah 117)

فَلَمَّا زَاغُوٓا۟ أَزَاغَ ٱللَّهُ قُلُوبَهُمْ

So when they turned away (from the Path of Allah), Allah turned their hearts away (from the Right Path). (Al-Saff 5)

12. Doubt:

لَا يَزَالُ بُنْيَٰنُهُمُ ٱلَّذِى بَنَوْا۟ رِيبَةًۭ فِى قُلُوبِهِمْ إِلَّآ أَن تَقَطَّعَ قُلُوبُهُمْ ۗ وَٱللَّهُ عَلِيمٌ حَكِيمٌ

The building which they built will never cease to be a cause of hypocrisy and doubt in their hearts, unless their hearts are cut to pieces. (i.e. till they die). And Allah is All- Knowing, All-Wise. (Al-Tawbah 110)

إِنَّمَا يَسْتَـْٔذِنُكَ ٱلَّذِينَ لَا يُؤْمِنُونَ بِٱللَّهِ وَٱلْيَوْمِ ٱلْءَاخِرِ وَٱرْتَابَتْ قُلُوبُهُمْ فَهُمْ فِى رَيْبِهِمْ يَتَرَدَّدُونَ

It is only those who believe not in Allah and the Last Day and whose hearts are in doubt that ask your leave (to be exempted from Jihad). So in their doubts they waver. (Al-Tawbah 45)

أَفِى قُلُوبِهِم مَّرَضٌ أَمِ ٱرْتَابُوٓا۟ أَمْ يَخَافُونَ أَن يَحِيفَ ٱللَّهُ عَلَيْهِمْ وَرَسُولُهُۥ ۚ بَلْ أُو۟لَٰٓئِكَ هُمُ ٱلظَّٰلِمُونَ

Is there a disease in their hearts? Or do they doubt or fear lest Allah and His Messenger (SAW) should wrong them in judgement. Nay, it is they themselves who are the Zalimun (polytheists, hypocrites and wrong-doers, etc.). (Al-Nur 50)

13. Denial/Rufusal:

كَيْفَ وَإِن يَظْهَرُوا۟ عَلَيْكُمْ لَا يَرْقُبُوا۟ فِيكُمْ إِلًّۭا وَلَا ذِمَّةًۭ ۚ يُرْضُونَكُم بِأَفْوَٰهِهِمْ وَتَأْبَىٰ قُلُوبُهُمْ وَأَكْثَرُهُمْ فَٰسِقُونَ

How [can there be a treaty] while, if they gain dominance over you, they do not observe concerning you any pact of kinship or covenant of protection? They satisfy you with their mouths, but their hearts refuse [compliance] , and most of them are defiantly disobedient. (Al-Tawbah 8)

14. Roughness:

فَبِمَا رَحْمَةٍۢ مِّنَ ٱللَّهِ لِنتَ لَهُمْ ۖ وَلَوْ كُنتَ فَظًّا غَلِيظَ ٱلْقَلْبِ لَٱنفَضُّوا۟ مِنْ حَوْلِكَ ۖ فَٱعْفُ عَنْهُمْ وَٱسْتَغْفِرْ لَهُمْ وَشَاوِرْهُمْ فِى ٱلْأَمْرِ ۖ فَإِذَا عَزَمْتَ فَتَوَكَّلْ عَلَى ٱللَّهِ ۚ إِنَّ ٱللَّهَ يُحِبُّ ٱلْمُتَوَكِّلِينَ

And by the Mercy of Allah, you dealt with them gently.. And had you been severe and harsh-hearted, they would have broken away from about you; so pass over (their faults), and ask (Allah's) Forgiveness for them; and consult them in the affairs. Then when you have taken a decision, put your trust in Allah, certainly, Allah loves those who put their trust (in Him). (Aal Imran 159)

15. Rage/Anger:

وَيَشْفِ صُدُورَ قَوْمٍۢ مُّؤْمِنِينَ

and heal the breasts of a believing people

وَيُذْهِبْ غَيْظَ قُلُوبِهِمْ ۗ

And remove the anger of their (believers') hearts (Al-Tawbah 14-15)

16. Anxiety/Agitation:

قُلُوبٌۭ يَوْمَئِذٍۢ وَاجِفَةٌ

(Some) hearts that Day will shake with fear and anxiety. (Al-Naazi'aat 8)

17. Zealotry:

Which is strong anger when it becomes a lot, its called ‘’Hamiyya’’ if its on Baatil, and if its on Haq its called ‘’Ghairah’’.

إِذْ جَعَلَ ٱلَّذِينَ كَفَرُوا۟ فِى قُلُوبِهِمُ ٱلْحَمِيَّةَ حَمِيَّةَ ٱلْجَٰهِلِيَّةِ

When those who disbelieve had put in their hearts pride and haughtiness the pride and haughtiness of the time of ignorance (Al-Fath 26)

18. Division/Disunion:

تَحْسَبُهُمْ جَمِيعًۭا وَقُلُوبُهُمْ شَتَّىٰ

You would think they were united, but their hearts are divided (Al-Hashr 14)

19. Unity:

ۚ وَٱذْكُرُوا۟ نِعْمَتَ ٱللَّهِ عَلَيْكُمْ إِذْ كُنتُمْ أَعْدَآءًۭ فَأَلَّفَ بَيْنَ قُلُوبِكُمْ فَأَصْبَحْتُم بِنِعْمَتِهِۦٓ إِخْوَٰنًۭا

and remember Allah's Favour on you, for you were enemies one to another but He joined your hearts together, so that, by His Grace, you became brethren (in Islamic Faith), (Aal Imran 103)

وَأَلَّفَ بَيْنَ قُلُوبِهِمْ ۚ لَوْ أَنفَقْتَ مَا فِى ٱلْأَرْضِ جَمِيعًۭا مَّآ أَلَّفْتَ بَيْنَ قُلُوبِهِمْ وَلَٰكِنَّ ٱللَّهَ أَلَّفَ بَيْنَهُمْ ۚ إِنَّهُۥ عَزِيزٌ حَكِيمٌۭ

And He has united their (i.e. believers') hearts. If you had spent all that is in the earth, you could not have united their hearts, but Allah has united them. Certainly He is All- Mighty, All-Wise. (Al-Anfaal 63)

Also see Al-Tawbah 60

20. Grudge/Spite:

وَٱلَّذِينَ جَآءُو مِنۢ بَعْدِهِمْ يَقُولُونَ رَبَّنَا ٱغْفِرْ لَنَا وَلِإِخْوَٰنِنَا ٱلَّذِينَ سَبَقُونَا بِٱلْإِيمَٰنِ وَلَا تَجْعَلْ فِى قُلُوبِنَا غِلًّۭا لِّلَّذِينَ ءَامَنُوا۟ رَبَّنَآ إِنَّكَ رَءُوفٌۭ رَّحِيمٌ

And those who came after them say: "Our Lord! Forgive us and our brethren who have preceded us in Faith, and put not in our hearts any hatred against those who have believed. Our Lord! You are indeed full of kindness, Most Merciful. (Al-Hashr 10)

21. Absorbing

قَالُوا۟ سَمِعْنَا وَعَصَيْنَا وَأُشْرِبُوا۟ فِى قُلُوبِهِمُ ٱلْعِجْلَ بِكُفْرِهِمْ ۚ قُلْ بِئْسَمَا يَأْمُرُكُم بِهِۦٓ إِيمَٰنُكُمْ إِن كُنتُم مُّؤْمِنِينَ

They said, "We have heard and disobeyed." And their hearts absorbed (the worship of) the calf because of their disbelief. Say: "Worst indeed is that which your faith enjoins on you if you are believers." (Al-Baqarah 93)

‏قال ‏ ‏حذيفة ‏ ‏سمعت رسول الله ‏ ‏صلى الله عليه وسلم ‏ ‏يقول ‏ ‏تعرض الفتن على القلوب كالحصير عودا عودا فأي قلب ‏ ‏أشربها ‏ ‏نكت ‏ ‏فيه نكتة سوداء وأي قلب ‏ ‏أنكرها ‏ ‏نكت ‏ ‏فيه ‏ ‏نكتة ‏ ‏بيضاء حتى تصير على قلبين على أبيض مثل ‏ ‏الصفا ‏ ‏فلا تضره فتنة ما دامت السماوات والأرض والآخر أسود ‏ ‏مربادا ‏ ‏كالكوز ‏ ‏مجخيا ‏ ‏لا يعرف معروفا ولا ينكر منكرا إلا ما ‏ ‏أشرب ‏ ‏من هواه

Hudhayfah (رضي الله عنه) said i heard Messenger of Allah (صلى الله عليه وسلم ) saying:
The Fitan (trials, tests) are offered to the hearts, just as the straws that are sewn into a woven mat, one after another. Any heart that accepts the Fitan, then a black dot will be engraved on it. Any heart that rejects the Fitan, then a white dot will be engraved on it. The hearts will therefore become two categories: white, just like the barren rock; no Fitnah shall ever harm this category as long as the heavens and earth still exist. Another category is black, just as the cup that is turned upside down, for this heart does not recognize righteousness or renounce evil. (Muslim)

22. Resemblance:

وَقَالَ ٱلَّذِينَ لَا يَعْلَمُونَ لَوْلَا يُكَلِّمُنَا ٱللَّهُ أَوْ تَأْتِينَآ ءَايَةٌۭ ۗ كَذَٰلِكَ قَالَ ٱلَّذِينَ مِن قَبْلِهِم مِّثْلَ قَوْلِهِمْ ۘ تَشَٰبَهَتْ قُلُوبُهُمْ ۗ قَدْ بَيَّنَّا ٱلْءَايَٰتِ لِقَوْمٍۢ يُوقِنُونَ

And those who have no knowledge say: "Why does not Allah speak to us (face to face) or why does not a sign come to us?" So said the people before them words of similar import. Their hearts are alike, We have indeed made plain the signs for people who believe with certainty. (Al-Baqarah 118)

23. Disgust:

وَإِذَا ذُكِرَ ٱللَّهُ وَحْدَهُ ٱشْمَأَزَّتْ قُلُوبُ ٱلَّذِينَ لَا يُؤْمِنُونَ بِٱلْءَاخِرَةِ ۖ وَإِذَا ذُكِرَ ٱلَّذِينَ مِن دُونِهِۦٓ إِذَا هُمْ يَسْتَبْشِرُونَ

And when Allah Alone is mentioned, the hearts of those who believe not in the Hereafter are filled with disgust (from the Oneness of Allah and when those (whom they obey or worship) besides Him [like all false deities other than Allah, it may be a Messenger like 'Iesa (Jesus) - son of Maryam (Mary), 'Uzair (Ezra), an angel, a pious man, a jinn, or any other creature even idols, graves of religious people, saints, priests, monks, etc.] are mentioned, behold, they rejoice! (Al-Zumar 45)

24. Blindness:

أَفَلَمْ يَسِيرُوا۟ فِى ٱلْأَرْضِ فَتَكُونَ لَهُمْ قُلُوبٌۭ يَعْقِلُونَ بِهَآ أَوْ ءَاذَانٌۭ يَسْمَعُونَ بِهَا ۖ فَإِنَّهَا لَا تَعْمَى ٱلْأَبْصَٰرُ وَلَٰكِن تَعْمَى ٱلْقُلُوبُ ٱلَّتِى فِى ٱلصُّدُورِ

Have they not travelled through the land, and have they hearts wherewith to understand and ears wherewith to hear? Verily, it is not the eyes that grow blind, but it is the hearts which are in the breasts that grow blind. (Al-Hajj 46)

25. Heedlessness:

وَلَا تُطِعْ مَنْ أَغْفَلْنَا قَلْبَهُۥ عَن ذِكْرِنَا وَٱتَّبَعَ هَوَىٰهُ وَكَانَ أَمْرُهُۥ فُرُطًۭا

and obey not him whose heart We have made heedless of Our Remembrance, one who follows his own lusts and whose affair (deeds) has been lost. (Al-Kahf 28)

Abu Hurairah (رضي الله عنه) narrated that Allah’s Messenger (صلى الله عليه وسلم ) said, “Invoke Allah while you are certain to be answered and know that Allah does not answer a Du’a from a heart which is inattentive and unmindful” (Tirmidhi, graded hasan by Albani).

26. Mercy:

وَجَعَلْنَا فِى قُلُوبِ ٱلَّذِينَ ٱتَّبَعُوهُ رَأْفَةًۭ وَرَحْمَةًۭ

And We ordained in the hearts of those who followed him, compassion and mercy. (Al-Hadeed 27)

Usamah bin Zaid (رضي الله عنه) reported: A grandson (child of the daughter) of the Messenger of Allah (PBUH) was presented to him while the child was at his last breath. Tears began to flow from the eyes of the Messenger of Allah (صلى الله عليه وسلم). Sa`d said to him: "What is this, O Messenger of Allah?'' He (صلى الله عليه وسلم) said, "It is mercy which Allah has placed in the hearts of his salves. Allah bestows His Mercy on the merciful among His slaves.''
[Al-Bukhari and Muslim].

''So when you see someone who has been afflicted with a calamity in head brains or body and you wept out of mercy, then this evidence that Allah Ta'ala has put in your heart mercy, and to whomever Allah puts mercy in his heart will be from the merciful whom will Allah have mercy upon.''
(Sharh Riyaadh Al-Saaliheen, ibn 'Uthaymeen)

27. Calmness:

هُوَ ٱلَّذِىٓ أَنزَلَ ٱلسَّكِينَةَ فِى قُلُوبِ ٱلْمُؤْمِنِينَ لِيَزْدَادُوٓا۟ إِيمَٰنًۭا مَّعَ إِيمَٰنِهِمْ

He it is Who sent down As-Sakinah (calmness and tranquillity) into the hearts of the believers, that they may grow more in Faith along with their (present) Faith. (Al-Fath 4)

لَّقَدْ رَضِىَ ٱللَّهُ عَنِ ٱلْمُؤْمِنِينَ إِذْ يُبَايِعُونَكَ تَحْتَ ٱلشَّجَرَةِ فَعَلِمَ مَا فِى قُلُوبِهِمْ فَأَنزَلَ ٱلسَّكِينَةَ عَلَيْهِمْ وَأَثَٰبَهُمْ فَتْحًۭا قَرِيبًۭا

Indeed, Allah was pleased with the believers when they gave their Bai'a (pledge) to you (O Muhammad SAW) under the tree, He knew what was in their hearts, and He sent down As-Sakinah (calmness and tranquillity) upon them, and He rewarded them with a near victory, (Al-Fath 18)

إِذْ جَعَلَ ٱلَّذِينَ كَفَرُوا۟ فِى قُلُوبِهِمُ ٱلْحَمِيَّةَ حَمِيَّةَ ٱلْجَٰهِلِيَّةِ فَأَنزَلَ ٱللَّهُ سَكِينَتَهُۥ عَلَىٰ رَسُولِهِۦ وَعَلَى ٱلْمُؤْمِنِينَ وَأَلْزَمَهُمْ كَلِمَةَ ٱلتَّقْوَىٰ وَكَانُوٓا۟ أَحَقَّ بِهَا وَأَهْلَهَا ۚ وَكَانَ ٱللَّهُ بِكُلِّ شَىْءٍ عَلِيمًۭا

When those who disbelieve had put in their hearts pride and haughtiness the pride and haughtiness of the time of ignorance, then Allah sent down His Sakinah (calmness and tranquillity) upon His Messenger ( SAW) and upon the believers, and made them stick to the word of piety (i.e. none has the right to be worshipped but Allah), and they were well entitled to it and worthy of it. And Allah is the All-Knower of everything. (Al-Fath 26)

28. Denial/Refusal:

فَٱلَّذِينَ لَا يُؤْمِنُونَ بِٱلْءَاخِرَةِ قُلُوبُهُم مُّنكِرَةٌۭ وَهُم مُّسْتَكْبِرُونَ

But for those who believe not in the Hereafter, their hearts deny (the faith in the Oneness of Allah), and they are proud. (Al-Nahl 22)

29. Amusement:

Which is heedlessness and turning away,

لَاهِيَةًۭ قُلُوبُهُمْ ۗ وَأَسَرُّوا۟ ٱلنَّجْوَى ٱلَّذِينَ ظَلَمُوا۟

With their hearts occupied (with evil things) those who do wrong, conceal their private counsels, (Al-Anbiyaa' 3)

30. Purification:

وَمَن يُرِدِ ٱللَّهُ فِتْنَتَهُۥ فَلَن تَمْلِكَ لَهُۥ مِنَ ٱللَّهِ شَيْـًٔا ۚ أُو۟لَٰٓئِكَ ٱلَّذِينَ لَمْ يُرِدِ ٱللَّهُ أَن يُطَهِّرَ قُلُوبَهُمْ ۚ لَهُمْ فِى ٱلدُّنْيَا خِزْىٌۭ ۖ وَلَهُمْ فِى ٱلْءَاخِرَةِ عَذَابٌ عَظِيمٌۭ

Those are the ones whose hearts Allah does not want to purify (from disbelief and hypocrisy); for them there is a disgrace in this world, and in the Hereafter a great torment. (Al-Maaidah 41)

وَإِذَا سَأَلْتُمُوهُنَّ مَتَٰعًۭا فَسْـَٔلُوهُنَّ مِن وَرَآءِ حِجَابٍۢ ۚ ذَٰلِكُمْ أَطْهَرُ لِقُلُوبِكُمْ وَقُلُوبِهِنَّ

And when you ask (his wives) for anything you want, ask them from behind a screen, that is purer for your hearts and for their hearts. (Al-Ahzaab 53)

31. Sinful:

وَلَا تَكْتُمُوا۟ ٱلشَّهَٰدَةَ ۚ وَمَن يَكْتُمْهَا فَإِنَّهُۥٓ ءَاثِمٌۭ قَلْبُهُۥ

And conceal not the evidence for he, who hides it, surely his heart is sinful, (Al-Baqarah 283)

32. Cut to pieces:

A heart which is cut off due to grief, sorrow and regret,

لَا يَزَالُ بُنْيَٰنُهُمُ ٱلَّذِى بَنَوْا۟ رِيبَةًۭ فِى قُلُوبِهِمْ إِلَّآ أَن تَقَطَّعَ قُلُوبُهُمْ ۗ وَٱللَّهُ عَلِيمٌ حَكِيمٌ

The building which they built will never cease to be a cause of hypocrisy and doubt in their hearts, unless their hearts are cut to pieces. (i.e. till they die). And Allah is All- Knowing, All-Wise. (Al-Tawbah 110)

33. Knowledge and Understanding:

أَفَلَمْ يَسِيرُوا۟ فِى ٱلْأَرْضِ فَتَكُونَ لَهُمْ قُلُوبٌۭ يَعْقِلُونَ بِهَآ

Have they not travelled through the land, and have they hearts wherewith to understand, (Al-Hajj 46)

وَلَقَدْ ذَرَأْنَا لِجَهَنَّمَ كَثِيرًۭا مِّنَ ٱلْجِنِّ وَٱلْإِنسِ ۖ لَهُمْ قُلُوبٌۭ لَّا يَفْقَهُونَ بِهَا

And surely, We have created many of the jinns and mankind for Hell. They have hearts wherewith they understand not, (Al-A'raaf 179)

ذَٰلِكَ بِأَنَّهُمْ ءَامَنُوا۟ ثُمَّ كَفَرُوا۟ فَطُبِعَ عَلَىٰ قُلُوبِهِمْ فَهُمْ لَا يَفْقَهُونَ

That is because they believed, then disbelieved, therefore their hearts are sealed, so they understand not. (Al-Munaafiqoon 3)

34. Earning:

لَّا يُؤَاخِذُكُمُ ٱللَّهُ بِٱللَّغْوِ فِىٓ أَيْمَٰنِكُمْ وَلَٰكِن يُؤَاخِذُكُم بِمَا كَسَبَتْ قُلُوبُكُمْ

Allah will not call you to account for that which is unintentional in your oaths, but He will call you to account for that which your hearts have earned. (Al-Baqarah 225)

35. Inclination:

إِن تَتُوبَآ إِلَى ٱللَّهِ فَقَدْ صَغَتْ قُلُوبُكُمَا

If you two (wives of the Prophet SAW, namely 'Aishah and Hafsah radhiallahu' anhu) turn in repentance to Allah, (it will be better for you), your hearts are indeed so inclined (to oppose what the Prophet SAW likes), (Al-Tahreem 4)

36. Guidance:

وَمَن يُؤْمِنۢ بِٱللَّهِ يَهْدِ قَلْبَهُۥ

and whosoever believes in Allah, He guides his heart [to the true Faith with certainty, i.e. what has befallen him was already written for him by Allah from the Qadar (Divine Preordainments) ], (Al-Taghaabun 11)


This is not the exact translation of the text, plus i have also added and subtracted some of the text.