Tariq bin Ziyad says that we went out with Sayyiduna Ali (may Allah be pleased with him) to fight the Khawarij. Sayyiduna Ali (may Allah be pleased with him) fought them and said: "Behold! The Prophet (peace and blessings be upon him) said: 'Soon a people will emerge who will speak correct words but it will not go beyond their throats. They will go out from the truth just as an arrow goes out from the prey. Their sign will be that among them there will be a man whose hand will be incomplete, and in his hand (palm) there will be black hair.'" Now, if this is the case, then you have purified the world from the existence of the worst man, and if it is not so, then you have killed the best man. Hearing this, we began to weep. Sayyiduna Ali (may Allah be pleased with him) said: "Search for him." So we searched for him and found a man with a defective hand. Upon seeing him, we fell into prostration, and Sayyiduna Ali (may Allah be pleased with him) also prostrated with us. However, he also said that their words were correct.