Sahih Bukhari
Sahih Bukhari Volume 006, Book 061, Hadith Number 502.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 61. Virtues of The Qur'an
Narrated By 'Aisha and Ibn 'Abbas : The Prophet remained in Mecca for ten years, during which the Qur'an used to be revealed to him; and he stayed in Medina for ten years.