Sahih al-Bukhari 5192

Arabic

حَدَّثَنَا مُحَمَّدُ بْنُ مُقَاتِلٍ، أَخْبَرَنَا عَبْدُ اللَّهِ، أَخْبَرَنَا مَعْمَرٌ، عَنْ هَمَّامِ بْنِ مُنَبِّهٍ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم ‏ "‏ لاَ تَصُومُ الْمَرْأَةُ وَبَعْلُهَا شَاهِدٌ إِلاَّ بِإِذْنِهِ ‏"‏‏.‏

English translation

Narrated Abu Huraira:The Prophet (ﷺ) said, "A woman should not fast (optional fasts) except with her husband's permission if he is at home (staying with her)

Reference: Sahih al-Bukhari 5192, Book of Wedlock, Marriage (Nikaah). English translation by Dr. Muhammad Muhsin Khan.