Al Isra, 33 Ayah
17:33
وَلَا تَقۡتُلُواْ ٱلنَّفۡسَ ٱلَّتِي حَرَّمَ ٱللَّهُ إِلَّا بِٱلۡحَقِّۗ وَمَن قُتِلَ مَظۡلُومٗا فَقَدۡ جَعَلۡنَا لِوَلِيِّهِۦ سُلۡطَٰنٗا فَلَا يُسۡرِف فِّي ٱلۡقَتۡلِۖ إِنَّهُۥ كَانَ مَنصُورٗا ٣٣
Wa Lā Taqtulū An-Nafsa Allatī Ĥarrama Al-Lahu 'Illā Bil-Ĥaqqi ۗ Wa Man Qutila Mažlūmāan Faqad Ja`alnā Liwalīyihi Sulţānāan Falā Yusrif Fī Al-Qatli ۖ 'Innahu Kāna Manşūrāan
And do not kill the soul which Allah has forbidden, except by right. And whoever is killed unjustly - We have given his heir authority, but let him not exceed limits in [the matter of] taking life. Indeed, he has been supported [by the law].