أَخْبَرَنِي أَحْمَدُ بْنُ سَعِيدٍ الرِّبَاطِيُّ، قَالَ حَدَّثَنَا يَعْقُوبُ، قَالَ حَدَّثَنِي أَبِي، عَنِ ابْنِ إِسْحَاقَ، قَالَ حَدَّثَنِي صَالِحُ بْنُ كَيْسَانَ، عَنْ عَبْدِ اللَّهِ بْنِ الْفَضْلِ بْنِ عَبَّاسِ بْنِ رَبِيعَةَ، عَنْ نَافِعِ بْنِ جُبَيْرِ بْنِ مُطْعِمٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏"‏ الأَيِّمُ أَوْلَى بِأَمْرِهَا وَالْيَتِيمَةُ تُسْتَأْمَرُ فِي نَفْسِهَا وَإِذْنُهَا صُمَاتُهَا ‏"‏ ‏.‏

It was narrated from Ibn 'Abbas that the Messenger of Allah said: "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." Translation Not Available

Book Ref: Sunan An Nisai Book 26 Hadith 3262
Web Ref:  Sunan An Nisai Vol 4 Book 26 Hadith 3264