Sahih Muslim Book 1, Hadith Number 351.

Chapter : The way in which the believers would see the Lord.

Hammam b.Munabbih said: This is what Abu Huraira transmitted to us from the Messenger of Allah (may peace be upon him), and he narrated many of them;- one of them was: The Messenger of Allah (may peace be upon him) said: The lowest in rank among you in Paradise would be asked: Desire (whatever you like). And he would express his desire and again and again express a desire. He would be asked: Have you expressed your desire? He would say: Yes. Then He (Allah) would say: For thee is (granted) what thou desirest, and the like of it along with it.