17- AL-’ISRÂ’ The Night Journey Revealed at Makkah /
33. Nor should you kill a self that Allâh has made inviolable unless it be justified for a proven crime. And if someone has been killed unjustly, then his patron is authorized by Allâh to use the means of procuring redress of grievances through avenging his right. But should he choose to avenge his right, he must not carry it to excess, for the divine law is on his side.