Arabic (Original)
حَدَّثَنَا إِسْمَاعِيلُ أَخْبَرَنَا هِشَامٌ الدَّسْتُوَائِيُّ عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ عَنْ مُحَمَّدِ بْنِ عَبْدِ الرَّحْمَنِ عَنْ جَابِرِ بْنِ عَبْدِ اللَّهِ قَالَ كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يُصَلِّي عَلَى رَاحِلَتِهِ نَحْوَ الْمَشْرِقِ فَإِذَا أَرَادَ أَنْ يُصَلِّيَ الْمَكْتُوبَةَ نَزَلَ فَاسْتَقْبَلَ الْقِبْلَةَ.
English Translation
Isma'il told us, Hisham al-Dastuwa'i informed us, from Yahya ibn Abi Kathir, from Muhammad ibn Abd al-Rahman, from Jabir ibn Abdullah, he said: The Messenger of God, peace and blessings be upon him, used to pray on his mount facing east, but when he wanted to perform the obligatory prayer, he would dismount and face the qiblah.