Malik related to me from Abdullah ibn al-Fadl from Nafi ibnJubayr ibn Mutim from Abdullah ibn Abbas that the Messenger of Allah,may Allah bless him and grant him peace, said, "A woman who has beenpreviously married is more entitled to her person than her guardian,and a virgin must be asked for her consent for herself, and herconsent is her silence "
USC-MSA web (English) reference: Book 28, Hadith 4
Arabic reference: Book 28, Hadith 1097