What is the ruling if a woman claims her husband is her brother by suckling relationship, but he denies it, and she presents no evidence?

Primary text

If the woman affirms that her husband is her brother by suckling relationship, but he denies it, and she fails to provide proof supporting her claim, she remains his wife according to the ruling authority. If this occurred before consummation (dukhul), she is not entitled to the dower (mahr) because she is admitting she does not deserve it. If she had already received it, the husband cannot reclaim it because he affirms it was rightfully hers. If this occurred after consummation, and she admits she knew they were siblings and willingly submitted to intercourse, she also forfeits the dower, as she confesses to being a willing adulteress. If she denies any part of this knowledge or compliance, she is entitled to the dower due to intercourse under a misconception (shubhah), and she remains his wife in the apparent ruling because her claim against him is not accepted.