Numbers 30:6-8

6But a young woman like that might make a promise to God and then marry a husband. She might have promised something when she had not thought carefully about it.

7After she marries, if her husband hears about it but he does not stop her, she must do what she promised.

8But her husband may say that he refuses to let her do it. He must say that on the day when he first hears about it. Then the woman does not have to do what she promised to do. The Lord will forgive her.