When your sleep....

Abu Huraira (رضي الله عنه) narrated that Allaah's Messenger (صلى الله عليه و سلم) said,

"During your sleep, Satan knots three knots at the back of the head of each of you, and he breathes the following words at each knot, 'The night is, long, so keep on sleeping.' If that person wakes up and celebrates the praises of Allaah, then one knot is undone, and when he performs ablution the second knot is undone, and when he prays, all the knots are undone, and he gets up in the morning lively and gay, otherwise he gets up dull and gloomy."

{Bukhari Vol.4 : No.491}