The Messenger of Allah ﷺ forbade eating the meat of horses, mules, and donkeys.
حدثنا محمد بن المصفى حدثنا بقية حدثني ثور بن يزيد عن صالح بن يحيى بن المقدام بن معد يكرب عن أبيه عن جده
نهى رسول الله ﷺ عن لحوم الخيل والبغال والحمير
[Its chain of transmission is daif] Abu Dawud narrated it in the Book of Foods, chapter on eating horse meat, hadith 3790, from the hadith of Baqiyyah, with this wording.Salih bin Yahya is lenient (as noted in Taqrib), and Bukhari said of him, "There is something questionable about him," while Yahya bin Miqdam is obscure. Musa bin Harun al-Hafiz, Bayhaqi, and others declared the hadith daif.