What is the ruling if a husband tells four women, 'If you menstruate, you are divorced,' and he confirms three of them but denies the fourth?

Primary text

If the husband confirms the menstruation of three women and denies the fourth, only the woman whose claim he denied is divorced. Her statement regarding her menstruation is accepted in her case, and since the husband confirmed the others, the condition of four menstruating women is fulfilled concerning her. The confirmed women are not divorced because the statement of the woman he denied is not accepted as valid regarding their condition.