Sahih Muslim Book 54, Hadith 21

When two Muslims (confront each other) and the one amongst them attacks his brother with a weapon, both of them are at the brink of Hell-Fire. And when one of them kills his companion, both of them get into Hell-Fire.

Previous Hadith

This hadith has been narrated on the authority of Hammad through another chain of transmitters.

Sahih Muslim Book 54, Hadith 20
Next Hadith

The last Hour will not come until the two parties (of Muslims) confront each other and there is a large-scale massacre amongst them and the claim of both of them is the same.

Sahih Muslim Book 54, Hadith 22