"I heard the Messenger of Allah (ﷺ) say: 'If two Muslims confront each other with their swords and one of them kills the other, both the killer and the slain will be in Hell.'" They said: "O Messenger of Allah, (we understand about) the killer, but what about the one who is killed?" He said: "He wanted to kill his companion."
Reference: Sunan an-Nasa'i 4122 In-book : Book 37, Hadith 157 English translation : Vol. 5, Book 37, Hadith 4127
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