What is the ruling on a wife concealing from her husband that she is taking a symbolic amount of money for her work, given that he objects to it and threatens to prevent her from working?

It is not permissible for a wife to work outside her home except with her husband's permission, unless this was stipulated in the marriage contract. If he permits her to do voluntary work but prohibits her from receiving a salary, she must obey him, and it is not permissible for her to disobey him or be deceptive. The general rule is that a wife should not leave her home except with her husband's permission. As for work within the home, such as cooking or sewing, provided it does not harm the husband or prevent her from his commands, his permission is not required. If the wife earns money from honorable work inside her home, there is no harm in this, and the money belongs to her, provided that it does not harm the husband or take from his money without his permission. It is advisable to discuss the matter with the husband to avoid problems.