Sa'id bin Yasar reported: I was travelling along with Ibn 'Umar on the way to Makkah. Sa'id said: When I apprehended dawn, I dismounted (the ride) and observed Witr prayer and then again joined him. Ibn 'Umar said to me: Where were you? I said: I apprehended the appearance of dawn, so I dismounted and observed Witr prayer. Upon this 'Abdullah said: Is there not a model pattern for you in the Messenger of Allah ( صلی اللہ علیہ وسلم ) ? I said: Yes, by Allah, and (then) he said: The Messenger of Allah ( صلی اللہ علیہ وسلم ) used to observe Witr prayer on the camel's back.