The Prophet ﷺ used to perform the witr prayer on his riding mount.
حدثنا نوح بن ميمون أخبرنا عبد الله عن موسى عن سالم
أن النبي ﷺ كان يوتر على راحلته
No references are available.
Its isnad is sahih. Abdullah is al-Umari. The hadith is an abridged version of 6221.