Surah Al-Isra Verse 33 - English Translation by Farook Malik
Surah Al-Israوَلَا تَقۡتُلُواْ ٱلنَّفۡسَ ٱلَّتِي حَرَّمَ ٱللَّهُ إِلَّا بِٱلۡحَقِّۗ وَمَن قُتِلَ مَظۡلُومٗا فَقَدۡ جَعَلۡنَا لِوَلِيِّهِۦ سُلۡطَٰنٗا فَلَا يُسۡرِف فِّي ٱلۡقَتۡلِۖ إِنَّهُۥ كَانَ مَنصُورٗا
You shall not kill anyone whom Allah has forbidden, except for just cause under the law. If anyone is killed unjustly, We have granted the right of retribution to his heir, but let him not carry his vengeance too far in killing the culprit through taking the law in his own hands, as he is supported by the law