Musannaf Ibn Abi Shaybah 19371 — A man who says to his wife: if you

Al-Hasan (may Allah have mercy on him) said: If a man says to his wife, "You are divorced if you wish," and the woman says, "I have wished for the divorce," then one divorce takes effect and the man has the right to take her back. And if he said, "If you wish, I will divorce you," and she said, "I have wished," then if the man wishes, he need not divorce her.