A woman without a husband has more right to her person than her guardian, and a virgin's consent must be asked from her, and her silence implies her consent. (Using translation from Muslim 1421a)  

أَنَّ رَسُولَ اللهِ ﷺ قَالَ «الْأَيِّمُ أَحَقُّ بِنَفْسِهَا مِنْ وَلِيِّهَا وَالْبِكْرُ تُسْتَأْذَنُ فِي نَفْسِهَا وَإِذْنُهَا صُمَاتُهَا»  

[Machine] The Prophet ﷺ said, "The widow has more right to her own self than her guardian, and the orphaned girl should be consulted and her consent sought for her marriage."  

أَنَّ النَّبِيَّ ﷺ قَالَ «الْأَيِّمُ أَحَقُّ بِنَفْسِهَا مِنْ وَلِيِّهَا وَالْيَتِيمَةُ تُسْتَأْمَرُ وَإِذْنُهَا صُمَاتُهَا»  

"A previously married woman has more right (to decide) about herself (with regard to marriage) than her guardian, and an orphan girl should be consulted with regard to marriage, and her permission is her silence." (Using translation from Nasāʾī 3262)  

أَنَّ رَسُولَ اللهِ ﷺ قَالَ «الْأَيِّمُ أَوْلَى بِأَمْرِهَا وَالْيَتِيمَةُ تُسْتَأْمَرُ فِي نَفْسِهَا وَإِذْنُهَا صُمَاتُهَا»  

The Prophet ﷺ said: A guardian has no concern with a woman previously married and has no husband, and an orphan girl (i.e. virgin) must be consulted, her silence being her acceptance. (Using translation from Abū Dāʾūd 2100)  

عَنِ النَّبِيِّ ﷺ قَالَ «لَيْسَ لِلْوَلِيِّ مَعَ الثَّيِّبِ أَمْرٌ وَالْيَتِيمَةُ تُسْتَأْمَرُ فَصَمْتُهَا إِقْرَارُهَا»