(5) باب فِي الْمَصَّةِ وَالْمَصَّتَيْنِ
Umm 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.
Reference: Sahih Muslim 1451 f
In-book reference: Book 17, Hadith 29
USC-MSA web (English) reference(deprecated numbering scheme): Book 8, Hadith 3420