Numbers 30:7-11

7and her husband hears about it but says nothing to her, then her vows or the pledges by which she obligated herself will stand. 8But if her husband forbids her when he hears about it, he nullifies the vow that obligates her or the rash promise by which she obligates herself, and the Lord will release her. 9“Any vow or obligation taken by a widow or divorced woman will be binding on her. 10“If a woman living with her husband makes a vow or obligates herself by a pledge under oath 11and her husband hears about it but says nothing to her and does not forbid her, then all her vows or the pledges by which she obligated herself will stand.