(11) باب إِذَا الْتَقَى الْمُسْلِمَانِ بِسَيْفَيْهِمَا
It was narrated from Anas bin Malik that the Prophet (ﷺ) said:
"There are no two Muslims who confront one another with theirswords,but both the killer and the slain will be in Hell."
Reference: Sunan Ibn Majah 3963
In-book reference: Book 36, Hadith 38
English translation: Vol. 5, Book 36, Hadith 3963