(13, 14) باب سُقُوطِ الْقَوَدِ مِنَ الْمُسْلِمِ لِلْكَافِرِ
It was narrated from 'Aishah, the Mother of the Believers, that the Messenger of Allah said:
"It is not permissible to kill a Muslim except in one of three cases: A adulterer who has been married, who is to be stoned; a man who kills a Muslim deliberately; and a man who leaves Islam and wages war against Allah, the Mighty and Sublime, and His Messenger, who is to be killed, crucified or banished from the land." (IT)
Reference (IT): Sunan an-Nasa'i 4743 (IT)
In-book reference (IT): Book 45, Hadith 38 (IT)
English translation (IT): Vol. 5, Book 45, Hadith 4747 (IT)