(14) باب الْحُكْمِ فِي الْمُرْتَدِّ
It was narrated that 'Uthman bin 'Affan said:
"I heard the Messenger of Allah [SAW] say: 'It is not permissible to shed the blood of a Muslim except in three cases: A man who commits adultery after having married; or one who kills another person, who is to be killed; or who reverts to Kufr after having accepted Islam, who is to be killed.'" (JA)
Reference (JA): Sunan an-Nasa'i 4058 (JA)
In-book reference (JA): Book 37, Hadith 93 (JA)
English translation (JA): Vol. 5, Book 37, Hadith 4063 (JA)