What is the ruling on a wife exchanging her division right for monetary compensation?

Primary text

It is invalid for a wife to offer her division night in exchange for money because her right is in the husband's presence and enjoyment, which is not a commodity exchangeable for wealth. If the husband takes money from her, she must return it, and he must grant her the time, as she abandoned it conditional upon compensation that was not delivered. However, exchanging it for non-monetary consideration, such as pleasing her husband or securing another benefit, is permissible, as evidenced when Aisha appeased the Prophet (PBUH) on behalf of Safiyyah and took her day, which the Prophet did not reject upon being informed.