Sunan Abi Dawud 2576
سنن أبي داود#2576Sahihحَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا مُعْتَمِرٌ، عَنْ عُبَيْدِ اللَّهِ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّ نَبِيَّ اللَّهِ صلى الله عليه وسلم كَانَ يُضَمِّرُ الْخَيْلَ يُسَابِقُ بِهَا .
Narrated Abdullah ibn Umar: The Prophet (ﷺ) used to make lean by training horses which he employed in the race
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Muslim (1870)
In-book reference: 15:100