Prescribed Punishments (Kitab Al-Hudud)

Dawud :: Book 38 : Hadith 4339

Narrated Aisha, Ummul Mu'minin:

The Apostle of Allah (peace_be_upon_him) Said: The blood of a Muslim man who testifies that there is no god but Allah and that Muhammad is Allah's Apostle should not lawfully be shed except only for one of three reasons: a man who committed fornication after marriage, in which case he should be stoned; one who goes forth to fight with Allah and His Apostle, in which case he should be killed or crucified or exiled from the land; or one who commits murder for which he is killed.