Numbers 30:6-8

6“And if she marries a husband while under a vow, or she uttered anything impulsively by which she has pledged herself,

7and her husband hears about it, but remains silent about her when he hears about it, then her vows will stand and her obligations which she has pledged for herself will stand.

8But if when her husband hears it he overrules her, then he will nullify the vow she has taken, and whatever she uttered impulsively which she has pledged for herself. And the Lord will release her from it.