مِشْكَاةُ الْمَصَابِيحِ
Mishkat al-Masabih 774
Prayer
The Sutra - Section 1
وَعَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ: أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ كَانَ يُعَرِّضُ رَاحِلَتَهُ فَيصَلي إِلَيْهَا. وَزَادَ الْبُخَارِيُّ قُلْتُ: أَفَرَأَيْتَ إِذَا هَبَّتِ الرِّكَابُ. قَالَ: كَانَ يَأْخُذُ الرَّحْلَ فَيُعَدِّلُهُ فَيُصَلِّي إِلَى آخرته
Nafi’ said on the authority of Ibn ‘Umar that the Prophet (ﷺ) used to make his riding-beast kneel between him and the qibla and pray facing it. (Bukhari and Muslim.) Bukhari added that Nafi' asked Ibn ‘Umar, saying, “Tell me what happened when the camels moved away,” to which he replied, “He used to take the saddle, put it straight, and pray facing the back of it.”
Mishkat al-Masabih, 774مُتَّفق عَلَيْهِ (الألباني)