Al-Adab Al-Mufrad #856
Kunyas
The Arabic includes the chain of narration (sanad) and the collector's commentary; the English translation shows the Prophet's words only.
حَدَّثَنَا عَبْدُ اللهِ بْنُ مُحَمَّدٍ، قَالَ: حَدَّثَنَا سُفْيَانُ، عَنْ إِسْمَاعِيلَ، عَنْ قَيْسٍ قَالَ: سَمِعْتُ مُعَاوِيَةَ يَقُولُ لأَخٍ لَهُ صَغِيرٍ: أَرْدِفِ الْغُلاَمَ، فَأَبَى، فَقَالَ لَهُ مُعَاوِيَةُ: بِئْسَ مَا أُدِّبْتَ، قَالَ قَيْسٌ: فَسَمِعْتُ أَبَا سُفْيَانَ يَقُولُ: دَعْ عَنْكَ أَخَاكَ.
Qays said, "I heard Mu'awiya say to a young brother of his, 'Mount
your slave behind you.' He refused. Mu'awiya said to him, 'How badly you
have been taught!' I heard Abu Sufyan say, 'leave your brother alone.'"
About Al-Adab Al-Mufrad
This hadith is #856 from Al-Adab Al-Mufrad, in the Book of Kunyas.