The ruling on one who vowed that if her daughter were healed, she would marry her to a specific person

Question:
He says in another question: There is a woman in the village who has a daughter suffering from a serious illness. She has taken her to all the hospitals and doctors, and she has not been granted a cure yet, but there is hope in Allah . This woman made a vow that if this girl is healed, she will marry her to so-and-so. Is she actually obligated to fulfill this vow, or does she have a way out? May Allah reward you with good.

Answer:
The matter is not in her hands. If the girl consents after her recovery, she consents; so there is no harm. Otherwise, she must expiate this vow with the expiation of an oath; because she vowed something she does not possess. Marriage is not in her hands, but in the hands of the girl. She is not married except with her permission. If she permits it, then praise be to Allah, if Allah grants her health. If she does not permit it, then she must pay the expiation of an oath in such a case. Yes.

The presenter : May Allah reward you with good, and may He do you good.