Killing
Do not take a life that Allah has made sacred, except in justice. If one is killed unjustly, We have given authority to his heir, but let him not exceed limits in retaliation; he is supported by the law.
17:33And slay not the life which Allah hath forbidden save with right. Whoso is slain wrongfully, We have given power unto his heir, but let him not commit excess in slaying. Lo! he will be helped.