Hadith
أَخْبَرَنَا مُحَمَّدُ بْنُ رَافِعٍ، قَالَ حَدَّثَنَا عَبْدُ الرَّزَّاقِ، قَالَ أَنْبَأَنَا مَعْمَرٌ، عَنْ صَالِحِ بْنِ كَيْسَانَ، عَنْ نَافِعِ بْنِ جُبَيْرٍ، عَنِ ابْنِ عَبَّاسٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " لَيْسَ لِلْوَلِيِّ مَعَ الثَّيِّبِ أَمْرٌ وَالْيَتِيمَةُ تُسْتَأْمَرُ فَصَمْتُهَا إِقْرَارُهَا " .
It was narrated from Ibn 'Abbas that the Prophet said:"The guardian has no right (to force) the previously married woman (into a marriage). And an orphan girl should be consulted, and her silence is her approval
Sahih · Abu Ghuddah
Sunan an-Nasa'i 3263 ·Book 26, Hadith 68·Also available on sunnah.com·