(37) باب الرُّخْصَةِ فِي نِكَاحِ الْمُحْرِمِ .
It was narrated from Ibn 'Abbas that the Messenger of Allah married Maimunah when he was a Muhrim. (ID)
Reference (ID): Sunan an-Nasa'i 3274 (ID)
In-book reference (ID): Book 26, Hadith 79 (ID)
English translation (ID): Vol. 4, Book 26, Hadith 3276 (ID)