صحيح مسلم
Sahih Muslim
كتاب صلاة المسافرين وقصرها
The Book of Prayer - Travellers
باب جَوَازِ صَلاَةِ النَّافِلَةِ عَلَى الدَّابَّةِ فِي السَّفَرِ حَيْثُ تَوَجَّهَتْ:
Chapter: It is permissible to offer voluntary prayers atop one’s mount when travelling, no matter what direction it is facing
Hadith 700
This hadith is listed as number 1618 in Maktaba Shamila
وحَدَّثَنِي حَرْمَلَةُ بْنُ يَحْيَى ، أَخْبَرَنَا ابْنُ وَهْبٍ ، أَخْبَرَنِي يُونُسُ ، عَنِ ابْنِ شِهَابٍ ، عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ ، عَنْ أَبِيهِ ، قَالَ : كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ، " يُسَبِّحُ عَلَى الرَّاحِلَةِ ، قِبَلَ أَيِّ وَجْهٍ تَوَجَّهَ ، وَيُوتِرُ عَلَيْهَا ، غَيْرَ أَنَّهُ لَا يُصَلِّي عَلَيْهَا الْمَكْتُوبَةَ .
Salim bin 'Abdullah reported on the authority of his father that the Messenger of Allah (ﷺ) (may peace be. upon him) used to observe Nafl (supererogatory) prayer on his ride no matter in what direction it turned its face, and he observed Witr too on it, but did not observe obligatory prayer on it.
