It was narrated from Umm Fadl that the Prophet of Allah was asked about breast-feeding and said:"Suckling (Al-Imlajah) once or twice does not make (marriage) prohibited." And (one of the narrators) Qatadah said (in his narration): "Suckling (Al-Massah) once or twice does not make (marriage) prohibited

English translation · Sunan an-Nasa'i