Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
ahmad:6287 – Ibn Numayr > ʿUbaydullāh > Nāfiʿ > Ibn ʿUmar

[Machine] I saw the Messenger of Allah ﷺ praying his supererogatory prayer wherever his camel directed him.  

أحمد:٦٢٨٧ – حَدَّثَنَا ابْنُ نُمَيْرٍ حَدَّثَنَا عُبَيْدُ اللهِ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ قَالَ

رَأَيْتُ رَسُولَ اللهِ ﷺ يُصَلِّي سُبْحَتَهُ حَيْثُتَوَجَّهَتْ بِهِ نَاقَتُهُ  

See similar narrations below:

Collected by Bukhārī, Muslim
bukhari:1093 – ʿAlī b. ʿAbdullāh > ʿAbd al-Aʿlá > Maʿmar > al-Zuhrī > ʿAbdullāh b. ʿĀmir from his father

I saw the Prophet ﷺ offering the prayer on his mount (Rahila) whatever direction it took.  

البخاري:١٠٩٣ – حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ قَالَ حَدَّثَنَا عَبْدُ الأَعْلَى قَالَ حَدَّثَنَا مَعْمَرٌ عَنِ الزُّهْرِيِّ عَنْ عَبْدِ اللَّهِ بْنِ عَامِرٍ عَنْ أَبِيهِ قَالَ

رَأَيْتُ النَّبِيَّ ﷺ يُصَلِّي عَلَى رَاحِلَتِهِ حَيْثُ تَوَجَّهَتْ بِهِ  

muslim:700a – Muḥammad b. ʿAbdullāh b. Numayr from my father > ʿUbaydullāh > Nāfiʿ > Ibn ʿUmar

Ibn 'Umar reported that the Messenger of Allah ﷺ used to say Nafl prayer on (the back of) his camel in whatever direction it took him.  

مسلم:٧٠٠a – حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ حَدَّثَنَا أَبِي حَدَّثَنَا عُبَيْدُ اللَّهِ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ

أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يُصَلِّي سُبْحَتَهُ حَيْثُمَا تَوَجَّهَتْ بِهِ نَاقَتُهُ