(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." (DE)
Reference (DE): Sunan an-Nasa'i 4108 (DE)
In-book reference (DE): Book 37, Hadith 143 (DE)
English translation (DE): Vol. 5, Book 37, Hadith 4113 (DE)