Hadith 4130
Mishkat al-Masabih
Game and Animals Which May Be Slaughtered · Lawful and Unlawful Food - Section 2
Arabic
وَعَن خالدِ بْنِ الْوَلِيدِ: أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ نَهَى عَنْ أَكْلِ لُحُومِ الْخَيْلِ والبِغالِ والحميرِ. رَوَاهُ أَبُو دَاوُد وَالنَّسَائِيّ
English translation
Khalid b. al-Walld said God’s messenger prohibited eating the flesh of horses, mules and asses. Abu Dawud and Nasa’i transmitted it.