وَعَن خالدِ بْنِ الْوَلِيدِ
أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ نَهَى عَنْ أَكْلِ لُحُومِ الْخَيْلِ والبِغالِ والحميرِ
Khalid b. al-Walld said God’s messenger prohibited eating the flesh of horses, mules and asses. Abu Dawud and Nasai transmitted it.
Mishkat al-Masabih 3964, Book 21, Game and Animals Which May Be Slaughtered, Hadith 65. 1 min read