﴿ ٱلَّذِينَ يُظَٰهِرُونَ مِنكُم مِّن نِّسَآئِهِم مَّا هُنَّ أُمَّهَٰتِهِمْ ۖ إِنْ أُمَّهَٰتُهُمْ إِلَّا ٱلَّٰٓـِٔى وَلَدْنَهُمْ ۚ وَإِنَّهُمْ لَيَقُولُونَ مُنكَرًۭا مِّنَ ٱلْقَوْلِ وَزُورًۭا ۚ وَإِنَّ ٱللَّهَ لَعَفُوٌّ غَفُورٌۭ ﴾

“As for those of you who [henceforth] separate themselves from their wives by saying, “Thou art as unlawful to me as my mother”, [let them bear in mind that] they can never be [as] their mothers: none are their mothers save those who gave them birth: and so, behold, they but utter a saying that runs counter to reason, and is [therefore] false. But, behold, God is indeed an absolver of sins, much-forgiving:”

Please check ayah 58:4 for complete tafsir.