Sahih al-Bukhari 1100
Sahih al-Bukhari · Book 18: Shortening the Prayers (At-Taqseer) · To offer the Nawafil while riding a donkey
Narrated Anas bin Seereen:
حَدَّثَنَا أَحْمَدُ بْنُ سَعِيدٍ ، قَالَ حَدَّثَنَا حَبَّانُ ، قَالَ حَدَّثَنَا هَمَّامٌ ، قَالَ حَدَّثَنَا أَنَسُ بْنُ سِيرِينَ ، قَالَ اسْتَقْبَلْنَا أَنَسًا حِينَ قَدِمَ مِنَ الشَّأْمِ، فَلَقِينَاهُ بِعَيْنِ التَّمْرِ، فَرَأَيْتُهُ يُصَلِّي عَلَى حِمَارٍ وَوَجْهُهُ مِنْ ذَا الْجَانِبِ، يَعْنِي عَنْ يَسَارِ الْقِبْلَةِ. فَقُلْتُ رَأَيْتُكَ تُصَلِّي لِغَيْرِ الْقِبْلَةِ. فَقَالَ لَوْلاَ أَنِّي رَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم فَعَلَهُ لَمْ أَفْعَلْهُ. رَوَاهُ ابْنُ طَهْمَانَ عَنْ حَجَّاجٍ عَنْ أَنَسِ بْنِ سِيرِينَ عَنْ أَنَسٍ ـ رضى الله عنه ـ عَنِ النَّبِيِّ صلى الله عليه وسلم .
We went to receive Anas bin Malik when he returned from Sham and met him at a place called 'Ainat- Tamr. I saw him praying riding the donkey, with his face to this direction, i.e. to the left of the Qibla. I said to him, "I have seen you offering the prayer in a direction other than that of the Qibla." He replied, "If I had not seen Allah's Messenger (ﷺ) doing it, I would not have done it."