Sunan Abi Dawud 2546
سنن أبي داود#2546Sahihحَدَّثَنَا مُوسَى بْنُ مَرْوَانَ الرَّقِّيُّ، حَدَّثَنَا مَرْوَانُ بْنُ مُعَاوِيَةَ، عَنْ أَبِي حَيَّانَ التَّيْمِيِّ، حَدَّثَنَا أَبُو زُرْعَةَ، عَنْ أَبِي هُرَيْرَةَ، : أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ يُسَمِّي الأُنْثَى مِنَ الْخَيْلِ فَرَسًا .
Narrated AbuHurayrah: The Messenger of Allah (ﷺ) used to name a mare a horse
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 ArnautHasan
Zubair Ali ZaiIsnaad Hasan
In-book reference: 15:70