Abu Wa'il says that once we were sitting with 'Urwah bin Muhammad when a man came and said some things that made him angry. When he felt his anger increasing, he got up and left. After a little while, he returned, having performed ablution, and said: My father told me, on the authority of my grandfather who had the honor of sitting with the Prophet ( صلی اللہ علیہ وسلم ), that the Prophet ( صلی اللہ علیہ وسلم ) said: Anger is an effect of Satan, and Satan was created from fire, and fire is extinguished with water. Therefore, when any of you becomes angry, he should perform ablution.