Sahih Bukhari
Sahih Bukhari Volume 007, Book 063, Hadith Number 201.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 63. Divorce
Narrated By Al-Miswar bin Makhrama Az-Zuhri : I heard the Prophet saying, "Banu Al-Mughira have asked my leave to let 'Ali marry their daughter, but I give no leave to this effect."