Sulaiman bin Surad reports that two persons abused each other in the presence of Allah’s Messenger (peace and blessings of Allah be to him) and the eyes of one of them turned red as embers and the veins of his neck were swollen. Thereupon Allah’s Messenger said: “I know of a wording; if he were to utter that, his fit of rage (would have been no more, and that wording is): I seek refuge with Allah from Satan the accursed.” One of the persons said: “Do you find any madness in me?” Ibn al-‘Alaa said: “Do you see it?” And he made no mention of the person.
(Sahih Muslim)
The supplication: Aoozu billahi minash-shaitanir-rajeem (I seek refuge with Allah from Satan the accursed) which the Holy Messenger has enjoined us to pronounce in order to keep from or get out of a fit of anger, is very meaningful as Satan and the fit of anger have so many similarities. It was out of anger and spite and losing self-control that Satan disobeyed Allah, for what was demanded from him was not agreeable to him. Similar is the case with one who falls prey to a fit of anger. He becomes angry on hearing anything unpalatable to the ears –whether right or wrong. And then he, in a fit of mounting rage, loses control over himself as he becomes forgetful of what he does. Moreover, Satan has been made of fire; and anger is also born of irritability of temperament which is a sort of inflammability of passions.