It was narrated that 'Uqbah bin Al-Harith said: I married a woman, then a black woman came to us and said: I breast-fed you both. I went to the Prophet (ﷺ) and said: I married so and so and a black woman came to me and said: I breast-fed you both. He turned away from me so I came to him from the other side and said: She is lying. He said: "How can you be intimate with your wife when she says that she breast-fed you both? Leave her (divorce her)."
Source: sunnah.com
Other translations
Arabic
أَخْبَرَنَا عَلِيُّ بْنُ حُجْرٍ، قَالَ أَنْبَأَنَا إِسْمَاعِيلُ، عَنْ أَيُّوبَ، عَنِ ابْنِ أَبِي مُلَيْكَةَ، قَالَ حَدَّثَنِي عُبَيْدُ بْنُ أَبِي مَرْيَمَ، عَنْ عُقْبَةَ بْنِ الْحَارِثِ، قَالَ وَقَدْ سَمِعْتُهُ مِنْ، عُقْبَةَ وَلَكِنِّي لِحَدِيثِ عُبَيْدٍ أَحْفَظُ قَالَ تَزَوَّجْتُ امْرَأَةً فَجَاءَتْنَا امْرَأَةٌ سَوْدَاءُ فَقَالَتْ إِنِّي قَدْ أَرْضَعْتُكُمَا . فَأَتَيْتُ النَّبِيَّ صلى الله عليه وسلم فَأَخْبَرْتُهُ فَقُلْتُ إِنِّي تَزَوَّجْتُ فُلاَنَةَ بِنْتَ فُلاَنٍ فَجَاءَتْنِي امْرَأَةٌ سَوْدَاءُ فَقَالَتْ إِنِّي قَدْ أَرْضَعْتُكُمَا . فَأَعْرَضَ عَنِّي فَأَتَيْتُهُ مِنْ قِبَلِ وَجْهِهِ فَقُلْتُ إِنَّهَا كَاذِبَةٌ . قَالَ " وَكَيْفَ بِهَا وَقَدْ زَعَمَتْ أَنَّهَا قَدْ أَرْضَعَتْكُمَا دَعْهَا عَنْكَ " .
sunnah.com