Bukhari Collection: ::Book Number 7:: Hadith # 57
Narrated `Aisha:Allah's Apostle said (to me), "You were shown to me in a dream. An angel brought you to me, wrapped in a piece of silken cloth, and said to me, 'This is your wife.' I removed the piece of cloth from your face, and there you were. I said to myself. 'If it is from Allah, then it will surely be.' "