حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا وَكِيعٌ، حَدَّثَنَا سُفْيَانُ، عَنْ مَنْصُورٍ، عَنْ إِبْرَاهِيمَ، عَنْ هَمَّامٍ، قَالَ جَاءَ رَجُلٌ فَأَثْنَى عَلَى عُثْمَانَ فِي وَجْهِهِ فَأَخَذَ الْمِقْدَادُ بْنُ الأَسْوَدِ تُرَابًا فَحَثَا فِي وَجْهِهِ وَقَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ إِذَا لَقِيتُمُ الْمَدَّاحِينَ فَاحْثُوا فِي وُجُوهِهِمُ التُّرَابَ ‏"‏ ‏.‏

Abu Bakrah said that when a man praised another man in his face in the presence of the Prophet (ﷺ) said

You have beheaded your friend (saying it three times). He then said : One who cannot help expressing praise of his companion, should say : I consider him such and such (as he intends to say), but I do not declare him pure with Allah.