One of the Kharijites al-Burj ibn Mus'hir at-Ta'i raised the slogan, "Command behoves only Allah" in such a way that Ameerul Momineen n heard it. On hearing it he said:

Keep quiet, Woe of Allah be upon you, O you with broken tooth. Certainly, by Allah, when truth became manifest even then your personality was weak and your voice was loose. But when wrong began to shout loudly you again sprouted up like the horns of a kid.