The Quran root ح س ر ḥ-s-r

وَقَالَ الَّذِينَ اتَّبَعُوا لَوْ أَنَّ لَنَا كَرَّةً فَنَتَبَرَّأَ مِنْهُمْ كَمَا تَبَرَّءُوا مِنَّا كَذَٰلِكَ يُرِيهِمُ اللَّهُ أَعْمَالَهُمْ حَسَرَاتٍ عَلَيْهِمْ وَمَا هُم بِخَارِجِينَ مِنَ النَّارِ ١٦٧

حَسَرَاتٍ ḥasarātin · (as) regrets

Those who followed will say, "If only we had another turn [at worldly life] so we could disassociate ourselves from them as they have disassociated themselves from us." Thus will Allāh show them their deeds as regrets upon them. And they are never to emerge from the Fire. (Surah Al-Baqarah, 2:167)

يَا أَيُّهَا الَّذِينَ آمَنُوا لَا تَكُونُوا كَالَّذِينَ كَفَرُوا وَقَالُوا لِإِخْوَانِهِمْ إِذَا ضَرَبُوا فِي الْأَرْضِ أَوْ كَانُوا غُزًّى لَّوْ كَانُوا عِندَنَا مَا مَاتُوا وَمَا قُتِلُوا لِيَجْعَلَ اللَّهُ ذَٰلِكَ حَسْرَةً فِي قُلُوبِهِمْ وَاللَّهُ يُحْيِي وَيُمِيتُ وَاللَّهُ بِمَا تَعْمَلُونَ بَصِيرٌ ١٥٦

حَسْرَةً ḥasratan · a regret

O you who have believed, do not be like those who disbelieved and said about their brothers when they traveled through the land or went out to fight, "If they had been with us, they would not have died or have been killed," so Allāh makes that [misconception] a regret within their hearts. And it is Allāh who gives life and causes death, and Allāh is Seeing of what you do. (Surah Ali 'Imran, 3:156)

قَدْ خَسِرَ الَّذِينَ كَذَّبُوا بِلِقَاءِ اللَّهِ حَتَّىٰ إِذَا جَاءَتْهُمُ السَّاعَةُ بَغْتَةً قَالُوا يَا حَسْرَتَنَا عَلَىٰ مَا فَرَّطْنَا فِيهَا وَهُمْ يَحْمِلُونَ أَوْزَارَهُمْ عَلَىٰ ظُهُورِهِمْ أَلَا سَاءَ مَا يَزِرُونَ ٣١

يَا حَسْرَتَنَا yāḥasratanā · Oh! Our regret

Those will have lost who deny the meeting with Allāh, until when the Hour [of resurrection] comes upon them unexpectedly, they will say, "Oh, [how great is] our regret over what we neglected concerning it [i.e., the Hour]," while they bear their burdens [i.e., sins] on their backs. Unquestionably, evil is that which they bear. (Surah Al-An'am, 6:31)

وَلَا تَجْعَلْ يَدَكَ مَغْلُولَةً إِلَىٰ عُنُقِكَ وَلَا تَبْسُطْهَا كُلَّ الْبَسْطِ فَتَقْعُدَ مَلُومًا مَّحْسُورًا ٢٩

مَّحْسُورًا maḥsūran · insolvent

And do not make your hand [as] chained to your neck or extend it completely and [thereby] become blamed and insolvent. (Surah Al-Isra, 17:29)

وَلَهُ مَن فِي السَّمَاوَاتِ وَالْأَرْضِ وَمَنْ عِندَهُ لَا يَسْتَكْبِرُونَ عَنْ عِبَادَتِهِ وَلَا يَسْتَحْسِرُونَ ١٩

يَسْتَحْسِرُونَ yastaḥsirūna · they tire

To Him belongs whoever is in the heavens and the earth. And those near Him [i.e., the angels] are not prevented by arrogance from His worship, nor do they tire. (Surah Al-Anbya, 21:19)

أَن تَقُولَ نَفْسٌ يَا حَسْرَتَا عَلَىٰ مَا فَرَّطتُ فِي جَنبِ اللَّهِ وَإِن كُنتُ لَمِنَ السَّاخِرِينَ ٥٦

يَا حَسْرَتَا yāḥasratā · Oh! My regret

Lest a soul should say, "Oh, [how great is] my regret over what I neglected in regard to Allāh and that I was among the mockers." (Surah Az-Zumar, 39:56)