Musnad Ahmad #867

‘Ali said: When I narrate to you from the Messenger of Allah (ﷺ), it would be dearer to me to be thrown down from the sky than to tell a lie about him But if I narrate from someone else, then I am a warrior and war is deceit, I heard the Messenger of Allah (ﷺ) say: `There will emerge at the end of time people who are young in age and immature, but their speech will be like the best of people. But their faith will not go any further than their throats. Wherever you encounter them, then kill them, for killing them brings to the one who kills them reward on the Day of Resurrection.`