Sahih Muslim 3449
صحيح مسلم#3449SahihUthman (b. 'Affan) reported it directly from Allah's Apostle (ﷺ) that he said:A Muhrim should neithermarry (in that state) nor make the proposal of marriage
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 16:52