(27) باب قِتَالِ الْمُسْلِمِ
It was narrated from 'Abdur-Rahman bin 'Abdullah, from his father, that:
The Messenger of Allah [SAW] said: "Defaming a Muslim is evildoing and fighting him is Kufr." (FR)
Reference (FR): Sunan an-Nasa'i 4108 (FR)
In-book reference (FR): Book 37, Hadith 143 (FR)
English translation (FR): Vol. 5, Book 37, Hadith 4113 (FR)