What is the ruling when the wife claims she granted permission (before consummation) and the husband's heirs deny it?

Primary text

The statement of the wife is accepted. This is because the dispute concerns a matter specific to her, originating from her side, and thus her statement is accepted regarding it, similar to disputes concerning her intention in matters where intention is considered. Additionally, she is claiming the validity of the contract, while they claim its nullity, placing the apparent truth with her.