Ruling on a husband agreeing with his wife that she work on the condition of waiving maintenance

There is a fatwa we want to verify. A woman wanted to get married and stipulated to her husband that she would work, and the husband stipulated that she not do so. Then he allowed her to work but did not provide for her. What is the meaning of you permitting this?
If she stipulated that she would work in teaching or other jobs and the husband agreed to that, there is nothing wrong with it. Also, if she stipulated regarding maintenance, there is nothing wrong with that either; because maintenance is her right, so if she waives it, there is no blame on her.