Sahih Bukhari | Volume 5 | Hadith Number 235
Narrated by 'Aisha
That the Prophet said to her, "You have been shown to me twice in my dream. I saw you pictured on a piece of silk and some-one said (to me). 'This is your wife.' When I uncovered the picture, I saw that it was yours. I said, 'If this is from Allah, it will be done."