" I narrated it to Zuhri and he said: Yazid b. al-Asamm (Allah be pleased with him) told me that he (the Holy Prophet) married her when he was not a muhrim."
Sahih Muslim Book 16, Hadith 54
← Previous Hadith I intend to marry Talha b. 'Umar and I earnestly desire you to be present there (in this ceremony of marriage). Aban said to him: I find you a block-headed 'Iraqi. I heard 'Uthman b. 'Affan say that Allah's Messenger (ﷺ) said: A Muhrim should not marry.

Sahih Muslim Book 16, Hadith 53 Next Hadith → Allah's Messenger. (ﷺ) married Maimuna while he was a Muhrim.

Sahih Muslim Book 16, Hadith 55