‏الجهاد والسير‏ : Hadeeth No:4416 The same tradition has been narrated on the authority of Sahl b. Sa'd through a different chain of transmitters with a slight difference in the wording....

‏الصلاة : Hadeeth No:1634 'Abdullah b. 'Umar reported: A man stood up and said. Messenger of Allaah, how is the night prayer? The Messenger of Allaah (sallAllaahu alayhi wa sallam) said: The night prayer consists of pair, but if you apprehend the rise of dawn, make it odd number by observing one rak'ah....