The Messenger of Allah ﷺ said, "A single suckling or two sucklings do not establish the prohibition of marriage."
قال حدثنا وكيع حدثنا هشام عن أبيه
قال رسول الله ﷺ لا تحرم المصة والمصتان
No references are available.
Its isnad is sahih, mentioned previously at 16055.