وَلَا تَقْتُلُوا۟ ٱلنَّفْسَ ٱلَّتِى حَرَّمَ ٱللَّهُ إِلَّا بِٱلْحَقِّ ۗ وَمَن قُتِلَ مَظْلُومًا فَقَدْ جَعَلْنَا لِوَلِيِّهِۦ سُلْطَـٰنًا فَلَا يُسْرِف فِّى ٱلْقَتْلِ ۖ إِنَّهُۥ كَانَ مَنصُورًا
Do not kill a soul [whose life] Allah has made inviolable, except with due cause, and whoever is killed wrongfully, We have certainly given his heir an authority. But let him not commit any excess in killing [the murderer], for he has been assisted [by law].