The Book of Marriage
26/37. Chapter:
The Concession Allowing A Muhrim To Marry
Sunan an-Nasai
أَخْبَرَنَا أَحْمَدُ بْنُ نَصْرٍ، قَالَ حَدَّثَنَا عُبَيْدُ اللَّهِ، - وَهُوَ ابْنُ مُوسَى - عَنِ ابْنِ جُرَيْجٍ، عَنْ عَطَاءٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم تَزَوَّجَ مَيْمُونَةَ وَهُوَ مُحْرِمٌ .
It was narrated from Ibn 'Abbas that the Messenger of Allah married Maimunah when he was a Muhrim.
Reference : Sunan an-Nasa'i 3274In-book reference : Book 26, Hadith 79English translation : Vol. 4, Book 26, Hadith 3276