[Machine] The Messenger of Allah ﷺ forbade the consumption of the meat of domestic donkeys on the day of the Battle of Khaybar. A narrator named Isḥāq bin Ibrāhīm reported that Muhammad bin ʿUbayd narrated that ʿUbaidullah reported from Nāfiʿ and Sālim who reported from Ibn ʿUmar that the Prophet ﷺ said similar words and did not mention Khaybar.  

أَنَّ رَسُولَ اللهِ ﷺ نَهَى عَنْ لُحُومِ الْحُمُرِ الْأَهْلِيَّةِ يَوْمَ خَيْبَرَ [225] 6612 أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ قَالَ أَخْبَرَنَا مُحَمَّدُ بْنُ عُبَيْدٍ قَالَ حَدَّثَنَا عُبَيْدُ اللهِ عَنْ نَافِعٍ وَسَالِمٍ عَنِ ابْنِ عُمَرَ عَنِ النَّبِيِّ ﷺ مِثْلَهُ وَلَمْ يَقُلْ خَيْبَرَ  

they went on a military campaign with the Messenger of Allah to Khaibar, and the people were starving. They found some domesticated donkeys there, so the people slaughtered some of them. The Prophet was told about that, and he ordered 'Abdur-rahman bin 'Awf to announce to the people: "The flesh of domesticated donkeys is not permissible for the one who testifies that I am the Messenger of Allah." (Using translation from Nasāʾī 4341)  

أَنَّهُ حَدَّثَهُمْ أَنَّهُمْ غَزَوْا مَعَ رَسُولِ اللهِ ﷺ إِلَى خَيْبَرَ وَالنَّاسُ جِيَاعٌ فَوَجَدُوا فِيهِ حُمُرًا مِنْ حُمُرِ الْإِنْسِ فَذَبَحَ النَّاسُ مِنْهَا فَحُدِّثَ بِذَلِكَ رَسُولُ اللهِ ﷺ فَأَمَرَ عَبْدَ الرَّحْمَنِ بْنَ عَوْفٍ فَأَذَّنَ فِي النَّاسِ «أَلَا إِنَّ لُحُومَ الْحُمُرِ الْإِنْسِ لَا تَحِلُّ لِمَنْ شَهِدَ أَنِّي رَسُولُ اللهِ ﷺ»