Al-Ahzab 33:4

مَّا جَعَلَ ٱللَّهُ لِرَجُلٖ مِّن قَلۡبَيۡنِ فِي جَوۡفِهِۦۚ وَمَا جَعَلَ أَزۡوَٰجَكُمُ ٱلَّـٰٓـِٔي تُظَٰهِرُونَ مِنۡهُنَّ أُمَّهَٰتِكُمۡۚ وَمَا جَعَلَ أَدۡعِيَآءَكُمۡ أَبۡنَآءَكُمۡۚ ذَٰلِكُمۡ قَوۡلُكُم بِأَفۡوَٰهِكُمۡۖ وَٱللَّهُ يَقُولُ ٱلۡحَقَّ وَهُوَ يَهۡدِي ٱلسَّبِيلَ 4

Allah has not made for a man two hearts in his interior. And He has not made your wives whom you declare unlawful your mothers. And he has not made your adopted sons your [true] sons. That is [merely] your saying by your mouths, but Allah says the truth, and He guides to the [right] way