Abd al-Rahman b. Abu Bakra reported on the authority of his father that a person was mentioned in the presence of Allah's Apostle ﷺ, and a person said: Allah's Messenger, no person is more excellent than he after Messenger of Allah ﷺ. Thereupon Allah's Apostle ﷺ said: Woe be to thee, you have broken the neck of your friend, and he said this twice. Then Messenger of Allah ﷺ said: If anyone has to praise his brother at all, he should say: I think him to be so and so, and even on this he should say: I do not consider anyone purer than Allah (considers). This hadith has been transmitted on the authority of Shu'ba with a slight variation of wording.

وَحَدَّثَنِي مُحَمَّدُ بْنُ عَمْرِو بْنِ عَبَّادِ بْنِ جَبَلَةَ بْنِ أَبِي رَوَّادٍ، حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، ح وَحَدَّثَنِي أَبُو بَكْرِ بْنُ نَافِعٍ، أَخْبَرَنَا غُنْدَرٌ، قَالَ شُعْبَةُ حَدَّثَنَا عَنْ خَالِدٍ الْحَذَّاءِ، عَنْ عَبْدِ، الرَّحْمَنِ بْنِ أَبِي بَكْرَةَ عَنْ أَبِيهِ، عَنِ النَّبِيِّ ﷺ أَنَّهُ ذُكِرَ عِنْدَهُ رَجُلٌ فَقَالَ رَجُلٌ يَا رَسُولَ اللَّهِ مَا مِنْ رَجُلٍ بَعْدَ رَسُولِ اللَّهِ ﷺ أَفْضَلُ مِنْهُ فِي كَذَا وَكَذَا . فَقَالَ النَّبِيُّ ﷺ " وَيْحَكَ قَطَعْتَ عُنُقَ صَاحِبِكَ " . مِرَارًا يَقُولُ ذَلِكَ ثُمَّ قَالَ رَسُولُ اللَّهِ ﷺ " إِنْ كَانَ أَحَدُكُمْ مَادِحًا أَخَاهُ لاَ مَحَالَةَ فَلْيَقُلْ أَحْسِبُ فُلاَنًا إِنْ كَانَ يُرَى أَنَّهُ كَذَلِكَ وَلاَ أُزَكِّي عَلَى اللَّهِ أَحَدًا " .