Abu Harb bin Abi al-Aswad أبو حرب بن أبي الأسود الديلي · General Behavior (Kitab Al-Adab)

Two men reviled each other in the presence of the Prophet (ﷺ) and one of them became excessively angry so much so that I thought that his nose will break up on account of excess of anger. The Prophet (ﷺ) said: I know a phrase which, if he repeated, he could get rid of this angry feeling. They asked: What is it, Messenger of Allah? He replied: He should say: I seek refuge in Thee from the accursed devil. Mu'adh…