‏الصلاة : Hadeeth No:1604 'A'isha reported: The Messenger of Allaah (sallAllaahu alayhi wa sallam) used to observe thirteen rak'ahs of the night prayer. Five out of them consisted of Witr, and he did not sit, but at the end (for salutation)....

‏الجهاد والسير‏ : Hadeeth No:4311 It is narrated on the authority of Jabir that the Messenger of Allaah (sallAllaahu alayhi wa sallam) said: War is a stratagem....