(31) باب التَّوَجُّهِ نَحْوَ الْقِبْلَةِ حَيْثُ كَانَ
Narrated Jabir:
Allah's Messenger (ﷺ) used to pray (optional, non-obligatory prayer) while riding on his mount (Rahila) wherever it turned, and whenever he wanted to pray the compulsory prayer he dismounted and prayed facing the Qibla. (ID)
Reference (ID): Sahih al-Bukhari 400 (ID)
In-book reference (ID): Book 8, Hadith 51 (ID)
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 8, Hadith 393 (ID)