أَخْبَرَنَا عُثْمَانُ بْنُ عَبْدِ اللَّهِ، قَالَ حَدَّثَنِي إِبْرَاهِيمُ بْنُ الْحَجَّاجِ، قَالَ حَدَّثَنَا وُهَيْبٌ، عَنِ ابْنِ جُرَيْجٍ، عَنْ عَطَاءٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلم نَكَحَ مَيْمُونَةَ وَهُوَ مُحْرِمٌ جَعَلَتْ أَمْرَهَا إِلَى الْعَبَّاسِ فَأَنْكَحَهَا إِيَّاهُ ‏.‏

It was narrated from Ibn 'Abbas that the Prophet married Maimunah when he was a Muhrim, and she appointed Al-'Abbas in charge of her marriage, and he married her to him. Translation Not Available

Book Ref: Sunan An Nisai Book 26 Hadith 3273
Web Ref:  Sunan An Nisai Vol 4 Book 26 Hadith 3275