"The Messenger of Allah swore to keep away from his wives and declared them as unlawful for him, so he made something permissible forbidden, and he offered expiation for having sworn to do so." (Using translation from Ibn Mājah 2072)

«آلَى رَسُولُ اللَّهِ ﷺ مِنْ نِسَائِهِ فَجَعَلَ الْحَرَامَ حَلَالًا وَجَعَلَ فِي الْيَمِينِ كَفَّارَةً»