If he divorced her before consummation but after taking possession, he returns the thousand, and the father owes nothing for them. And if he stipulated that for someone other than the father, then the entire specified amount is for her.

The Shaykh :"But listen to what follows from this regarding the author's words; it is something strange." If he divorced her before consummation but after taking possession, he returns the thousand, and the father owes nothing for them. "This is strange. A man married a woman with a thousand for her and a thousand for her father. The father said, 'I will not let you consummate the marriage unless you hand it over.' He said, 'Here, this thousand is for you and this thousand is for the daughter.' Then he divorced her before consummation. When a man divorces before consummation, the mahr is halved: half for him and half for her." We said: The husband is entitled to the half. He reclaims the half. From where does he reclaim it? He takes the thousand from the daughter and takes nothing from the father. Has the daughter now received half of the mahr? No, she has received nothing, poor thing. And the father has received a thousand without the marriage being consummated. The correct view, if we were to accept the validity of what the author said, is that if he divorces before consummation, he takes half of the thousand from the daughter and half of the thousand from the father. This is if we say it is valid, although we do not say it is valid. We say that if the father stipulates for himself something from the mahr, he has no right to it. This is the stronger position. I think the time has ended. And Allah knows best. The time has ended. Hajjaj says, yes, let us go.

The questioner : ... ؟

The Shaykh : Yes, because the Messenger of Allah said and this is not from those who read fiqh.

The questioner :"And if he stipulated that for someone other than the father, then the entire specified amount is for her."
And if a man married off his daughter, even if she is a widow, without a mahr equal to that of her peers, it is valid, even if she disliked it. And if he married her off with a mahr other than the mahr of her peers with her permission, it is valid. And if he did not have her permission, it is the mahr of her peers. And if he married off his young son with the mahr of his peers or more, it is valid, and it is a debt upon the husband. And if the father was unable to pay, he is not liable for it.

The Shaykh : In the name of Allah, the Most Gracious, the Most Merciful. Praise be to Allah, Lord of the worlds. And may Allah send prayers and blessings upon our Prophet Muhammad, and upon his family and his Companions, and upon those who follow them with excellence until the Day of Judgment.
A man married off his sister for two thousand and stipulated for himself a thousand. What is the ruling? The brother married off his sister for two thousand and stipulated for himself a thousand. Answer. You have no knowledge; you were not present.