It is narrated from Sayyiduna Uqbah bin al-Harith (may Allah be pleased with him) that he married a woman. Then a black slave woman came and claimed that she had breastfed both of them. I mentioned it to the Prophet (peace and blessings be upon him), but he turned away. Then I mentioned it a second time and said: She is lying. The Messenger of Allah (peace and blessings be upon him) smiled and said: "How can it be, when it has already been said?"
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 15043