Sahih Muslim 1421bBook 16, Hadith 79
وَحَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا سُفْيَانُ، عَنْ زِيَادِ بْنِ سَعْدٍ، عَنْ عَبْدِ اللَّهِ بْنِ الْفَضْلِ، سَمِعَ نَافِعَ بْنَ جُبَيْرٍ، يُخْبِرُ عَنِ ابْنِ عَبَّاسٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلم قَالَ " الثَّيِّبُ أَحَقُّ بِنَفْسِهَا مِنْ وَلِيِّهَا وَالْبِكْرُ تُسْتَأْمَرُ وَإِذْنُهَا سُكُوتُهَا " .
A woman who has been previously married (Thayyib) has more right to her person than her guardian. And a virgin should also be consulted, and her silence implies her consent.