1696An NasaiSahih (Darussalam)أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ، عَنْ عُبَيْدِ اللَّهِ بْنِ الأَخْنَسِ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ يُوتِرُ عَلَى الرَّاحِلَةِ .It was narrated from Ibn Umar that:The Messenger of Allah (ﷺ) used to pray witr on his mount.Reference: Sunan an-Nasa'i 1686 In-book : Book 20, Hadith 89 English translation : Vol. 2, Book 20, Hadith 1687