Sura al-Māʾidah 5:45

وَكَتَبْنَا عَلَيْهِمْ فِيهَآ أَنَّ ٱلنَّفْسَ بِٱلنَّفْسِ وَٱلْعَيْنَ بِٱلْعَيْنِ وَٱلْأَنفَ بِٱلْأَنفِ وَٱلْأُذُنَ بِٱلْأُذُنِ وَٱلسِّنَّ بِٱلسِّنِّ وَٱلْجُرُوحَ قِصَاصٌ فَمَن تَصَدَّقَ بِهِۦ فَهُوَ كَفَّارَةٌ لَّهُۥ وَمَن لَّمْ يَحْكُم بِمَآ أَنزَلَ ٱللَّـهُ فَأُو۟لَٰٓئِكَ هُمُ ٱلظَّٰلِمُونَ

wa-katabnā ʿalayhim fīhā annā l-nafsa bil-nafsi wa-l-ʿayna bil-ʿayni wa-l-anfa bil-anfi wa-l-udhuna bil-udhuni wa-l-sinna bil-sinni wa-l-jurūḥa qiṣāṣun fa-man taṣaddaqa bihi fa-huwa kaffāratun lahu wa-man lam yaḥkum bimā anzala allāhu fa-ūlāʾika humu l-ẓālimūna

We ordained therein for them: "Life for life, eye for eye, nose or nose, ear for ear, tooth for tooth, and wounds equal for equal." But if any one remits the retaliation by way of charity, it is an act of atonement for himself. And if any fail to judge by (the light of) what Allah hath revealed, they are (No better than) wrong-doers.