Sahih Muslim
The Book Pertaining to the Merits of the Companions (Allah Be Pleased With Them) of the Holy Prophet (May Peace Be Upon Him) (Kitab Al-Fadail Al-Sahabah)
Book Number: 031 / Hadith Number: 6058
Ibn Umar reported: I used to spend nights in the mosque and by that time I had no wife and children. I saw in a dream as if I am being taken to a well. I made a mention of it to Allah's Messenger (may peacebe upon him). The rest of the hadith is the same.