The Book of Hunting and Slaughtering
42/31. Chapter:
Prohibition Of Eating The Flesh Of Domesticated Donkeys
Sunan an-Nasai
أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ أَنْبَأَنَا مُحَمَّدُ بْنُ عُبَيْدٍ، قَالَ حَدَّثَنَا عُبَيْدُ اللَّهِ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّ النَّبِيَّ صلى الله عليه وسلم مِثْلَهُ وَلَمْ يَقُلْ خَيْبَرَ .
Narrated from Ibn 'Umar: A similar report was narrated from Ibn 'Umar, but he did not mention Khaibar,
Reference : Sunan an-Nasa'i 4337In-book reference : Book 42, Hadith 75English translation : Vol. 5, Book 42, Hadith 4342