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"A man stood and praised one of the 'Amirs so Al-Miqdad bin Al-Aswad threw dust in his face and said: 'The Messenger of Allah (ﷺ) ordered us to throw dust in the faces of those who praise others.'"

A man came and praised ‘Uthman in his face, al-Miqdad b. Al-Aswad took dust and threw it on his face, saying : The Messenger of Allah (ﷺ) said : When you see those who are given to praising people, throw dust in their faces.

Abu Ma'mar said, "A man began to praise one of the amirs. Al-Miqdad began to throw dirt in his face and said, 'The Messenger of Allah, (ﷺ), commanded us to throw dust into the faces of those who praise people.'"