What is the ruling on a husband taking money from his wife without her knowledge, and is the wife's informing her sister of what happened considered a disclosure of household secrets, and is her demand for a specific monthly amount in exchange for forgiving him considered exploitation?

The wife does not have the right to save money given to her by her husband without his permission. The saved money belongs to the husband, and he may dispose of it without informing his wife, unless he wishes to return it as a donation. Disclosing this matter to her sister is considered divulging household secrets. The wife is not permitted to stipulate that the husband pay a sum in exchange for forgiving him, as he did not commit an offense requiring forgiveness, and he is not obligated to give her the sum unless it is a donation from him.