حَدَّثَنَا أَبُو بَكْرٍ النَّيْسَابُورِيُّ ، حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ بِشْرٍ ، ثنا يَحْيَى بْنُ سَعِيدٍ ، عَنِ ابْنِ عَجْلانَ ، ثنا نَافِعٌ ، عَنِ ابْنِ عُمَرَ ، " أَنَّهُ كَانَ يُصَلِّي عَلَى رَاحِلَتِهِ وَيُوتِرُ عَلَيْهَا ، وَيُذْكَرُ ذَلِكَ عَنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ " .
It is narrated about Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that he used to perform the Witr prayer on his mount, and he mentioned regarding the Noble Prophet (peace and blessings be upon him) that the Noble Prophet (peace and blessings be upon him) used to do the same.