Sahih al-Bukhari 4412
Sahih al-Bukhari · Book 64: Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi) · Hajjat-ul-Wada
Narrated `Abdullah bin `Abbas:
حَدَّثَنَا يَحْيَى بْنُ قَزَعَةَ ، حَدَّثَنَا مَالِكٌ ، عَنِ ابْنِ شِهَابٍ ،. وَقَالَ اللَّيْثُ حَدَّثَنِي يُونُسُ ، عَنِ ابْنِ شِهَابٍ ، حَدَّثَنِي عُبَيْدُ اللَّهِ بْنُ عَبْدِ اللَّهِ ، أَنَّ عَبْدَ اللَّهِ بْنَ عَبَّاسٍ ـ رضى الله عنهما ـ أَخْبَرَهُ أَنَّهُ، أَقْبَلَ يَسِيرُ عَلَى حِمَارٍ، وَرَسُولُ اللَّهِ صلى الله عليه وسلم قَائِمٌ بِمِنًى فِي حَجَّةِ الْوَدَاعِ يُصَلِّي بِالنَّاسِ، فَسَارَ الْحِمَارُ بَيْنَ يَدَىْ بَعْضِ الصَّفِّ، ثُمَّ نَزَلَ عَنْهُ، فَصَفَّ مَعَ النَّاسِ.
That he came riding a donkey when Allah 's Apostle was standing at Mina during Hajjat-ul-Wada`, leading the people in prayer. The donkey passed in front of a part of the row (of the people offering the prayer). Then he dismounted from it and took his position in the row with the people.