Sahih al-Bukhari 4227

Arabic

حَدَّثَنِي مُحَمَّدُ بْنُ أَبِي الْحُسَيْنِ، حَدَّثَنَا عُمَرُ بْنُ حَفْصٍ، حَدَّثَنَا أَبِي، عَنْ عَاصِمٍ، عَنْ عَامِرٍ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ قَالَ لاَ أَدْرِي أَنَهَى عَنْهُ رَسُولُ اللَّهِ صلى الله عليه وسلم مِنْ أَجْلِ أَنَّهُ كَانَ حَمُولَةَ النَّاسِ، فَكَرِهَ أَنْ تَذْهَبَ حَمُولَتُهُمْ، أَوْ حَرَّمَهُ فِي يَوْمِ خَيْبَرَ، لَحْمَ الْحُمُرِ الأَهْلِيَّةِ‏.‏

English translation

Narrated Ibn `Abbas:I do not know whether the Prophet (ﷺ) forbade the eating of donkey-meat (temporarily) because they were the beasts of burden for the people, and he disliked that their means of transportation should be lost, or he forbade it on the day of Khaibar permanently

Reference: Sahih al-Bukhari 4227, Book of Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi). English translation by Dr. Muhammad Muhsin Khan.