Muwatta Malik, Book 7, Hadith 15 (USC-MSA) ⓘ

Yahya related to me from Malik from Abu Bakr ibn Umar that Said ibn Yasar said, ''I was travelling with Abdullah ibn Umar on the road to Makka, and fearing that it was nearly dawn. I dismounted and prayed witr. Abdullah said, 'Is there not a model for you in the Messenger of Allah, may Allah bless him and grant him peace?' I said, 'Of course, by Allah!' He said, 'The Messenger of Allah, may Allah bless him and grant him peace, used to pray witr on his camel.' "

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ أَبِي بَكْرِ بْنِ عُمَرَ، عَنْ سَعِيدِ بْنِ يَسَارٍ، قَالَ كُنْتُ أَسِيرُ مَعَ عَبْدِ اللَّهِ بْنِ عُمَرَ بِطَرِيقِ مَكَّةَ - قَالَ سَعِيدٌ - فَلَمَّا خَشِيتُ الصُّبْحَ نَزَلْتُ فَأَوْتَرْتُ ثُمَّ أَدْرَكْتُهُ فَقَالَ لِي عَبْدُ اللَّهِ بْنُ عُمَرَ أَيْنَ كُنْتَ فَقُلْتُ لَهُ خَشِيتُ الصُّبْحَ فَنَزَلْتُ فَأَوْتَرْتُ ‏.‏ فَقَالَ عَبْدُ اللَّهِ أَلَيْسَ لَكَ فِي رَسُولِ اللَّهِ أُسْوَةٌ ‏.‏ فَقُلْتُ بَلَى وَاللَّهِ ‏.‏ فَقَالَ إِنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ يُوتِرُ عَلَى الْبَعِيرِ ‏.‏