Umm al-Fadl reported:A bedouin came to Allah's Apostle (ﷺ) when he was in my house and said: Allah's Apostle, I have had a wife and I married another besides her, and my first wife claimed that she had suckled once or twice my newly married wife, thereupon Allah's Apostle (ﷺ) said: One suckling or two do not make the (marriage) unlawful

English translation · Sahih Muslim