49:11
O you who believe! (Let) not ridicule a people [of] (another) people, perhaps that they maybe better than them; and (let) not women [of] (other) women perhaps that they maybe better than them. And (do) not insult yourselves and (do) not call each other by nicknames. Wretched is the name (of) disobedience after the faith. And whoever (does) not repent, then those - they (are) the wrongdoers.