The ruling on conditional divorce after taking back a wife

Question : For example, if a man says to his wife, “If so-and-so arrives, you are divorced,” and then he divorces her before he arrives, and then he takes her back during the waiting period, and then he arrives after the taking back,

Answer : then she is divorced, because the taking back is based on the previous marriage contract. However, if he contracts a new marriage with her, the condition does not apply.