It is narrated from Safwan bin Salim that Sayyiduna Abu Umamah Bahili (may Allah be pleased with him) entered Damascus and saw the heads of the Haruriyyah, that is, the Kharijites, hanging. He said three times: These people are the dogs of Hell, these people are the dogs of Hell. Among those killed under the canopy of the sky, these are the worst of the slain, and those whom they killed are the best of the slain under the canopy of the sky. Then he began to weep. A man came to him and said: O Abu Umamah, why did you weep upon seeing them? He replied: I am weeping because these people have left the fold of Islam. These are the ones who caused division and tore the religion into pieces.