(And Allah has said in Surah An-Nur:) "Do not compel your slave girls to prostitution if they desire chastity, in order that you may make a gain in the goods of this worldly life. And if anyone compels them, then surely Allah is Forgiving, Merciful to them after their compulsion."
Narrated Khansa' bint Khidam Al-Ansariya: That her father gave her in marriage when she was a matron and she disliked that marriage. So she came and (complained) to the Prophets and he declared that marriage invalid. (See Hadith No. 69, Vol. 7)
Hadith Referenceصحيح البخاري / كتاب الإكراه / 6945
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة
Narrated `Aisha: I asked the Prophet, "O Allah's Apostle! Should the women be asked for their consent to their marriage?" He said, "Yes." I said, "A virgin, if asked, feels shy and keeps quiet." He said, "Her silence means her consent."
Hadith Referenceصحيح البخاري / كتاب الإكراه / 6946
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة