Reference: Fataawa Muhimmah li-Nisaa. al-Ummah – Page 157
Fataawa Islaamiyyah – Volume 3, Page 211
Question: There are some women who are overcome [with the urge] to talk about goings on at home and their [private] life with their husbands to their relatives and friends. Some of this talk is about private matters which the husband would not want anyone to know about. So what is the ruling regarding the women who reveal private matters outside of the home or to some of those within the home?
Response: That which some women do in talking about goings on at home and married life to their relatives and friends is haraam, and it is not permissible for a woman to reveal private matters of her home or how things are with her husband to anyone! Allaah (Subhaanahu wa Ta’aala) said:
{Therefore the righteous women are devoutly obedient [to Allaah and to their husbands], and guard in the husband’s absence what Allaah orders them to guard (e.g. their chastity, their husband’s property, etc.)}, [Soorah an-Nisaa., Aayah 34].
And the Prophet ﷺ said:
«The worst of the people in [the Sight of] Allaah on the Day of Resurrection is the man who discloses [secrets] to his wife and she discloses [secrets] to him and then he reveals her secrets [to others]», [Transmitted by Muslim – Volume 2, Number 1020, Abu Daawood – Number 4870; with the chain: ‘Abdur-Rahmaan ibn Sa’d on the authority of Sa’eed al-Khudree].