‏الصلاة : Hadeeth No:1006 Musa b. Talha reported it on the authority of his father: The Messenger of Allaah (sallAllaahu alayhi wa sallam) said: When one of you places in front of him so me. thing such as the back of a saddle, he should pray without caring who passes on the other side of it....

‏الصلاة : Hadeeth No:1505 Salim b. 'Abdullah reported on the authority of his father that the Messenger of Allaah (sallAllaahu alayhi wa sallam) used to observe Nafl (supererogatory) prayer on his ride no matter in what direction it turned its face, and he observed Witr too on it, but did not observe obligatory prayer on it....