(29) باب تَحْرِيمِ الْقَتْلِ
It was narrated that Abu Bakrah said:
"If two Muslim men bear weapons against each other, then they are both on the brink of Hell. And if one of them kills the other, they will both be in Hell."
Reference: Sunan an-Nasa'i 4117
In-book reference: Book 37, Hadith 152
English translation: Vol. 5, Book 37, Hadith 4122