: Depends if you're talking about the common Christian
: conception of angels or the Muslim view.
I know very little of Muslim tradition as pertaining to angels. One thing that does come to mind is the concept of "guardian angels". Traditionally, each human has 4 angels. Two write down your actions by day in a book, then they switch places with the other pair in the evening, which is supposed to be one of your most vulnerable times. The books they write in are given to Allah during judgement.
I might be wrong on some details, if you know, please tell me.
-Welly