[Machine] The Messenger of Allah ﷺ used to engage in dhikr (remembrance of Allah) while riding his camel, regardless of whether his face was facing the Qibla or not. Abdullah bin Umar used to do the same.  

أَنَّ رَسُولَ اللهِ ﷺ كَانَ يُسَبِّحُ وَهُوَ عَلَى ظَهْرِ رَاحِلَتِهِ لَا يُبَالِي حَيْثُ كَانَ وَجْهُهُ وَيَوْمِي بِرَأْسِهِ إِيمَاءً وَكَانَ عَبْدُ اللهِ بْنُ عُمَرَ يَفْعَلُ ذَلِكَ  

[Machine] He heard Jabir ibn Abdullah al-Ansari say: "I saw the Prophet ﷺ praying while riding his mount, performing voluntary prayers in every direction. However, he would shorten the two prostrations of each unit (rak'ah) and gesture during my daily prayers."  

أَنَّهُ سَمِعَ جَابِرَ بْنَ عَبْدِ اللهِ الْأَنْصَارِيَّ يَقُولُ رَأَيْتُ النَّبِيَّ ﷺ يُصَلِّي وَهُوَ عَلَى رَاحِلَتِهِ النَّوَافِلَ مِنْ كُلِّ جِهَةٍ وَلَكِنَّهُ يَخْفِضُ السَّجْدَتَيْنِ مِنَ الرَّكْعَةِ وَيَوْمِي إِيمَاءً  

[Machine] The Prophet ﷺ sent me for a need, so I came to him while he was praying on his riding animal towards the east. The prostration is lower than the bowing, so I greeted him, but he did not respond to me. When he finished, he said, "I was praying."  

بَعَثَنِي النَّبِيُّ ﷺ لِحَاجَةٍ فَجِئْتُ وَهُوَ يُصَلِّي عَلَى رَاحِلَتِهِ نَحْوَ الْمَشْرِقِ وَالسُّجُودُ أَخْفَضُ مِنَ الرُّكُوعِ فَسَلَّمْتُ عَلَيْهِ فَلَمْ يَرُدَّ عَلَيَّ فَلَمَّا فَرَغَ قَالَ إِنِّي كُنْتُ أُصَلِّي