(11) باب إِذَا الْتَقَى الْمُسْلِمَانِ بِسَيْفَيْهِمَا
It was narrated from Abu Bakrah that the Prophet (ﷺ) said:
"Whenone Muslim wields his weapon against his brother, both of them are atthe edge of Hell, and if one of them kills the other, they will bothenter it."
Reference: Sunan Ibn Majah 3965
In-book reference: Book 36, Hadith 40
English translation: Vol. 5, Book 36, Hadith 3965