Sahih al-Bukhari 6060
Book 78: Good Manners and Form (Al-Adab) · Narrated by Abu Musa
Arabic
حَدَّثَنَا مُحَمَّدُ بْنُ صَبَّاحٍ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ زَكَرِيَّاءَ، حَدَّثَنَا بُرَيْدُ بْنُ عَبْدِ اللَّهِ بْنِ أَبِي بُرْدَةَ، عَنْ أَبِي بُرْدَةَ، عَنْ أَبِي مُوسَى، قَالَ سَمِعَ النَّبِيُّ صلى الله عليه وسلم رَجُلاً يُثْنِي عَلَى رَجُلٍ وَيُطْرِيهِ فِي الْمِدْحَةِ فَقَالَ " أَهْلَكْتُمْ ـ أَوْ قَطَعْتُمْ ـ ظَهْرَ الرَّجُلِ ".
English translation
Narrated Abu Musa:The Prophet (ﷺ) heard a man praising another man and he was exaggerating in his praise. The Prophet (ﷺ) said (to him). "You have destroyed (or cut) the back of the man
Reference: Sahih al-Bukhari 6060, Book of Good Manners and Form (Al-Adab). English translation by Dr. Muhammad Muhsin Khan.