What is the ruling if a husband describes the divorce as being by Bid'ah (innovation) when addressing his wife?

Primary text

If the husband addresses his wife while she is menstruating or in a period of purity during which cohabitation occurred, the divorce takes effect immediately because he matched the declaration to the current state (the state of bid'ah). If the wife is in a period of purity in which no cohabitation took place, the divorce does not take effect immediately. Instead, it takes effect at the first instant of her subsequent menstruation. If he has intercourse with her, the divorce takes effect upon the meeting of the circumcised parts. If he withdraws without penetration stopping, there is no consequence for him regarding the divorce declaration.