My mother made a vow: if so-and-so marries so-and-so, she will slaughter a camel. This man has married her. Does she have to pay the expiation for an oath?

The questioner:
He says: Honorable Shaykh, may Allah grant you success. My mother vowed that if so-and-so marries so-and-so, she would slaughter a camel.

The Shaykh:
So-and-so marries so-and-so? How does so-and-so marry so-and-so, or does he marry so-and-so?

The questioner:
It is written that so-and-so married so-and-so. He wrote it down.

The Shaykh:
Her intention is to harm the woman by her husband marrying another wife. She wants to harm her; this is not permissible for her. If she made this vow, it is not considered a vow of obedience. It is not a vow of obedience because she wants to harm her sister and for her husband to marry another wife to distress her. This is not a vow of obedience. She should seek refuge in Allah from Shaytan and seek forgiveness. Yes.

The presenter:
And she does not pay the expiation for an oath.

The Shaykh:
And there is no expiation for an oath. This is a vow of disobedience because she wants to harm her sister. Yes.