Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him) said: Two men insulted each other in the presence of the Prophet (peace and blessings be upon him), and one of them became so intensely angry that it seemed to me as though his nose were smeared (in the dust). The Messenger of Allah (peace and blessings be upon him) said: "I know a word which, if this angry man were to say it, Allah would remove this (anger) from him: 'A'udhu billahi min al-shaytan al-rajim' (I seek refuge in Allah from Satan, the accursed)."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 17425