كتاب النكاح
16
The Book of Marriage
(9)
Chapter: Seeking permission of a previously-married woman in words, and of a virgin by silence
(9)
باب اسْتِئْذَانِ الثَّيِّبِ فِي النِّكَاحِ بِالنُّطْقِ وَالْبِكْرِ بِالسُّكُوتِ ‏

Ibn Abbas (Allah be pleased with them) reported Allah's Messenger (ﷺ) as saying:

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.
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 ‏"‏ ‏.‏
Reference : Sahih Muslim 1421 b
In-book reference : Book 16, Hadith 79
USC-MSA web (English) reference : Book 8, Hadith 3307
  (deprecated numbering scheme)