Chapter 2, Verse 178, The Cow
سُوۡرَةُ البَقَرَة
يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُواْ كُتِبَ عَلَيۡكُمُ ٱلۡقِصَاصُ فِي ٱلۡقَتۡلَىۖ ٱلۡحُرُّ بِٱلۡحُرِّ وَٱلۡعَبۡدُ بِٱلۡعَبۡدِ وَٱلۡأُنثَىٰ بِٱلۡأُنثَىٰۚ فَمَنۡ عُفِيَ لَهُۥ مِنۡ أَخِيهِ شَيۡءٞ فَٱتِّبَاعُۢ بِٱلۡمَعۡرُوفِ وَأَدَآءٌ إِلَيۡهِ بِإِحۡسَٰنٖۗ ذَٰلِكَ تَخۡفِيفٞ مِّن رَّبِّكُمۡ وَرَحۡمَةٞۗ فَمَنِ ٱعۡتَدَىٰ بَعۡدَ ذَٰلِكَ فَلَهُۥ عَذَابٌ أَلِيمٞ
ya ayyuha allatheena amanoo kutiba aaalaykumu alqisasu fee alqatla alhurru bialhurri waalaaabdu bialaaabdi waalontha bialontha faman aaufiya lahu min akheehi shayon faittibaaaun bialmaaaroofi waadaon ilayhi biihsanin thalika takhfeefun min rabbikum warahmatun famani iaatada baaada thalika falahu aaathabun aleemun
O you who believe! Al-qisas (the law of equality in punishment) is prescribed for you in case of murder: the free for the free, the slave for the slave, and the female for the female. But if the killer is forgiven by the brother (or the relatives, etc.) of the killed against blood money, then adhering to it with fairness and payment of the blood money, to the heir should be made in fairness. This is an alleviation and a mercy from your Lord. So after this whoever transgresses the limits (i.e. kills the killer after taking the blood money), he shall have a painful torment.
Chapter 2, Verse 179, The Cow
سُوۡرَةُ البَقَرَة
وَلَكُمۡ فِي ٱلۡقِصَاصِ حَيَوٰةٞ يَٰٓأُوْلِي ٱلۡأَلۡبَٰبِ لَعَلَّكُمۡ تَتَّقُونَ
walakum fee alqisasi hayatun ya olee alalbabi laaaallakum tattaqoona
And there is (a saving of) life for you in Al-qisas (the law of equality in punishment), O men of understanding, that you may become Al-Muttaqun (the pious - see V. 2:2).
Chapter 17, Verse 33, The night journey
سورة الإسراء
وَلَا تَقۡتُلُواْ ٱلنَّفۡسَ ٱلَّتِي حَرَّمَ ٱللَّهُ إِلَّا بِٱلۡحَقِّۗ وَمَن قُتِلَ مَظۡلُومٗا فَقَدۡ جَعَلۡنَا لِوَلِيِّهِۦ سُلۡطَٰنٗا فَلَا يُسۡرِف فِّي ٱلۡقَتۡلِۖ إِنَّهُۥ كَانَ مَنصُورٗا
And do not kill anyone which Allah has forbidden, except for a just cause. And whoever is killed (intentionally with hostility and oppression and not by mistake), We have given his heir the authority [(to demand qisas, law of equality in punishment or to forgive, or to take Diya (blood money)]. But let him not exceed limits in the matter of taking life (i.e. he should not kill except the killer only). Verily, he is helped (by the Islamic law).
