Wa laa taqtulun nafsal latee harramal laahu illaa bilhaqq; wa man qutila mazlooman faqad ja'alnaa liwaliyyihee sultaanan falaa yusrif fil qatli innahoo kaana mansooraa
And do not kill any one whom Allah has forbidden, except for a just cause, and whoever is slain unjustly, We have indeed given to his heir authority, so let him not exceed the just limits in slaying; surely he is aided.
