And Laith said: Yunus narrated the hadith to me, from Ibn Shihab, he said: Abdullah bin Amir narrated the hadith to me that his father informed him that
he saw the Prophet ﷺ offering voluntary prayer upon the back of the mount at night, whichever direction the mount's face was.
وَقَالَ اللَّيْثُ حَدَّثَنِي يُونُسُ، عَنِ ابْنِ شِهَابٍ، قَالَ حَدَّثَنِي عَبْدُ اللَّهِ بْنُ عَامِرِ بْنِ رَبِيعَةَ أَنَّ أَبَاهُ أَخْبَرَهُ
أَنَّهُ رَأَى النَّبِيَّ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ صَلَّى السُّبْحَةَ بِاللَّيْلِ فِي السَّفَرِ عَلَى ظَهْرِ رَاحِلَتِهِ حَيْثُ تَوَجَّهت بهِ
Reference: Sahih Al Bukhari 1104