Sahih Muslim 2908
صحيح مسلم#2908SahihA'isha (Allah be pleased with her) reported that Asma' bint `Umais gave birth to Muhammad b Abu Bakr near Dhu'l-Hulaifa. The Messenger of Allah (ﷺ) commanded Abu Bakr to convey to her that she should take a bath and then enter into the state of Ihram
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: 15:117