Sahih Bukhari 1098

Narrated Jabir bin `Abdullah: The Prophet used to pray (the Nawafil) on his Mount facing east and whenever he wanted to offer the compulsory prayer, he used to dismount and face the Qibla. ..

Narrated Anas bin Seereen: We went to receive Anas bin Malik when he returned from Sham and met him at a place called 'Ainat- Tamr. I saw him praying riding the donkey, with his face to this direction, i.e. to the left of the Qibla. I said to him, ..

Narrated Hafs bin `Asim: Ibn `Umar went on a journey and said, I accompanied the Prophet and he did not offer optional prayers during the journey, and Allah says: 'Verily! In Allah's Apostle you have a good example to follow.' (33.21) ..

Narrated Ibn `Umar: I accompanied Allah's Apostle and he never offered more than two rak`at during the journey. Abu Bakr, `Umar and `Uthman used to do the same. ..

Narrated Ibn Abu Laila: Only Um Hani told us that she had seen the Prophet (p.b.u.h) offering the Duha (forenoon prayer). She said, On the day of the conquest of Mecca, the Prophet took a bath in my house and offered eight rak`at. I never saw him..

Narrated `Abdullah bin Amir that his father had told him that he had seen the Prophet (p.b.u.h) praying Nawafil at night on the back of his Mount on a journey, facing whatever direction it took. ..