Sahih Muslim | Book 29 | Chapter 2

Narrated by Abu Huraira
Abu Huraira reported Allah's Messenger (may peace be upon him) as saying: He who saw me in a dream in fact saw me, for the satan does not appear in my form.

Narrated by Abu Huraira
Abu Huraira reported: I heard Allah's Messenger (may peace be upon him) as saying: He who saw me in a dream would soon see me in the state of wakefulness, or as if he saw me in a state of wakefulness, for the satan does not appear in my form.

Narrated by Abu Qatada
Abu Qatada reported Allah's Messenger (may peace be upon him) as saying: He who saw me in dream in fact saw the truth (what is true).

Narrated by Jabir
Jabir reported Allah's Messenger (may peace be upon him) as saying: He who saw me in sleep in fact saw me, for it is not possible for the satan to appear in my form; and he also said: When any one of you sees a (hulm) he should not inform anyone, for it is a sort of vain sport of devil in the state of sleep.