Al-Kāfi

2. Abu Ali al-Ash’ari has narrated from Muhammad ibn ‘Abd al-Jabbar from ibn Faddal from Ali ibn ‘Uqbah from his father from Muyassir who has said the following: “Once anger was mentioned before abu la’ far (a.s.) and he said, ‘Once a man is angered (unless something is done to control it) he will never become happy until he enters the fire. Therefore, whoever becomes angry with people if he is standing must sit down immediately. The filth of Satan goes away from him. Whenever one becomes angry with a relative he should reach out and touch him; when kinship is touched, it calms down.’”