Chapter: [During the obligatory Salat (prayers)] one should face the Qiblah (Kabah at Makkah) wherever one may be

Allah's Messenger (ﷺ) prayed facing Baitul-Maqdis for sixteen or seventeen months but he loved to face the Ka`ba (at Mecca) so Allah revealed: "Verily, We have seen the turning of your face to the heaven!" (2:144) So the Prophet (ﷺ) faced the Ka`ba and the fools amongst the people namely "the Jews" said, "What has turned them from their Qibla (Baitul-Maqdis) which they formerly observed"" (Allah revealed): "Say: 'To Allah belongs the East and the West. He guides whom he will to a straight path'." (2:142) A man prayed with the Prophet (facing the Ka`ba) and went out. He saw some of the Ansar praying the `Asr prayer with their faces towards Baitul-Maqdis, he said, "I bear witness that I prayed with Allah's Messenger (ﷺ) facing the Ka`ba." So all the people turned their faces towards the Ka`ba.

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.

The Prophet (ﷺ) prayed (and the sub-narrator Ibrahim said, "I do not know whether he prayed more or less than usual"), and when he had finished the prayers he was asked, "O Allah's Messenger (ﷺ)! Has there been any change in the prayers?" He said, "What is it?' The people said, "You have prayed so much and so much." So the Prophet (ﷺ) bent his legs, faced the Qibla and performed two prostration's (of Sahu) and finished his prayers with Taslim (by turning his face to right and left saying: 'As-Salamu `Alaikum- Warahmat-ullah'). When he turned his face to us he said, "If there had been anything changed in the prayer, surely I would have informed you but I am a human being like you and liable to forget like you. So if I forget remind me and if anyone of you is doubtful about his prayer, he should follow what he thinks to be correct and complete his prayer accordingly and finish it and do two prostrations (of Sahu).