(27) باب قِتَالِ الْمُسْلِمِ
It was narrated that 'Abdullah said:
"Fighting a believer is Kufr and defaming him is evildoing." (PT)
Reference (PT): Sunan an-Nasa'i 4113 (PT)
In-book reference (PT): Book 37, Hadith 148 (PT)
English translation (PT): Vol. 5, Book 37, Hadith 4118 (PT)