Hadith 1750
Abu Hurairah (May Allah be pleased with him) said:
Abu Huraira's storyعن أبي هريرة رضي الله عنه أن رسول الله صلى الله عليه وسلم قال: "لا يحل للمرأة أن تصوم وزوجها شاهد إلا بإذنه، ولا تأذن في بيته إلا بإذنه" ((متفق عليه)).
The Messenger of Allah (ﷺ) said, "It is not lawful for a woman to observe an optional Saum (fast) without the permission of her husband when he is at home. Nor should she allow anyone to enter his house without his permission." [Al-Bukhari and Muslim].
In plain words
The hadith states that a wife should not take on a voluntary fast while her husband is at home without his agreement, and should not let others into his house without his leave. It teaches mutual consideration within the marriage.
Riyad as-Salihin 1750 · Book 17, Hadith 240