Albdullah bin Zaid narrated:
When we awoke, we went to Allah's Messenger to inform him of the dream. He said: 'Indeed this dream is true. So go to Bilal, for he has a better and louder voice than you. Convey to him what was said to you, so that he may call (to the prayer) with that.' He said: When Umar bin Al-Khattab heard Bilal calling for the prayer he went to Allah's Messenger, and he was dragging his Izar, (as he was hurrying) saying: 'O Allah's Messenger! By the One Who sent you with the truth! I dreamt the same as what he said.''' He said: So Allah's Messenger said: 'To Allah is the praise, so that confirms it even more.'''