Sahih Muslim 3595
صحيح مسلم#3595SahihUmm Fadl (Allah be pleased with her) reported Allah's Apostle (may peace be'apon him) having said this:One or two sucklings do not make (the marriage) unlawful
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: 17:28