Sahih Muslim 3596
صحيح مسلم#3596SahihUmm Fadl (Allah be pleased with her) reported that a person asked Allah's Apostle (ﷺ):Does one suckling make (the marriage) unlawful? He said: No
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: 17:29