Hazrat Suwaid bin Ghaflah narrates that Hazrat Ali (may Allah be pleased with him) burned the heretics in the marketplace. When he set fire to them, he said: Allah and His Messenger (peace and blessings be upon him) have spoken the truth. Then he turned back. The narrator says: I followed him, so he turned towards me and asked: Is that Suwaid? I said: Yes! O Commander of the Faithful, I heard you saying something! He said: O Suwaid! Indeed, I am among ignorant people. So when you hear me saying that the Messenger of Allah (peace and blessings be upon him) said, then that is the truth.