Musnad Ahmad 3778

It was narrated that 'Abdullah (رضي الله عنه) said: I came to the Prophet (ﷺ) when he was in a red tent (‘Abdul-Malik said: of leather) with approximately forty men. He said: “You will conquer other lands and you will prevail and acquire booty. Whoever among you lives to see that, let him fear Allah and enjoin what is good and forbid what is evil, and let him uphold his ties of kinship. And whoever tells a lie about me deliberately, let him take his place in Hell. The likeness of the one who helps his people in something other than the truth is like that of the camel that falls into the well and stretches out its tail.”