Reference: http://www.alfawzan.af.org.sa/node/16049
Question: [What is] the ruling regarding [a husband] spreading marital secrets, and talking to his friends about that which occurs between the husband and wife; very often he [even] talks about things which a person would be shy to mention?
Response: This is prohibited; the Messenger [of Allaah] ﷺ forbade this. It is prohibited to spread the secrets of a married couple – neither the wife nor the husband are to do so, [rather] it is obligatory to keep them private [between the two of them].
