A man came and praised ‘Uthman in his face, al-Miqdad b. Al-Aswad took dust and threw it on his face, saying : The Apostle of Allah ﷺ said : When you see those who are given to praising people, throw dust in their faces. (Using translation from Abū Dāʾūd 4804)
سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ إِذَا رَأَيْتُمُ الْمَدَّاحِينَ فَاحْثُوا فِي وُجُوهِهِمُ التُّرَابَ