Sahih Bukhari 1091

Salim said, Ibn `Umar delayed the Maghrib prayer because at that time he heard the news of the death of his wife Safiya bint Abi `Ubaid. I said to him, 'The prayer (is due).' He said, 'Go on.' Again I said, 'The prayer (is due).' He said, 'Go..

Narrated `Abdullah bin 'Amir from his father who said: I saw the Prophet (p.b.u.h) offering the prayer on his mount (Rahila) whatever direction it took. ..

Narrated Jabir bin `Abdullah: The Prophet used to offer the Nawafil, while riding, facing a direction other than that of the Qibla. ..

Narrated Nafi`: Ibn `Umar (while on a journey) used to offer the prayer and the witr on his mount (Rahila). He said that the Prophet used to do so. ..

Narrated `Abdullah bin Dinar: On traveling, `Abdullah bin `Umar used to offer the prayer on his Mount by signs whatever direction it took. `Abdullah said that the Prophet used to do so. ..

Narrated 'Amir bin Rabi`a: I saw the Prophet on his Mount praying Nawafil by nodding his head, whatever direction he faced, but Allah's Apostle never did the same in offering the compulsory prayers. ..