17. Al-Isra (Isra', The Night Journey, Children Of Israel)

Surah: 17   Aya: 33

33. Wala taqtuloo alnnafsa allatee harrama Allahu illa bialhaqqi waman qutila mathlooman faqad jaAAalna liwaliyyihi sultanan fala yusrif fee alqatli innahu kana mansooran
  

  Translation

33. And do not kill anyone which Allâh has forbidden, except for a just cause. And whoever is killed (intentionally with hostility and oppression and not by mistake), We have given his heir the authority [(to demand Qisâs, Law of Equality in punishment or to forgive, or to take Diya (blood money)]. But let him not exceed limits in the matter of taking life (i.e he should not kill except the killer only). Verily, he is helped (by the Islâmic law).