“When her husband is present, no woman should fast any day apart from the month of Ramadan without his permission.”  

عَنِ النَّبِيِّ ﷺ قَالَ لاَ تَصُومُ الْمَرْأَةُ وَزَوْجُهَا شَاهِدٌ يَوْمًا مِنْ غَيْرِ شَهْرِ رَمَضَانَ إِلاَّ بِإِذْنِهِ  

“The Messenger of Allah ﷺ forbade women from fasting without the permission of their husbands.”  

نَهَى رَسُولُ اللَّهِ ﷺ النِّسَاءَ أَنْ يَصُمْنَ إِلاَّ بِإِذْنِ أَزْوَاجِهِنَّ