On the day that her husband will hear of it, and yet not contradict it, she shall be liable to the vow, and she shall repay whatever she has promised
Other versions
King James Version
But if her husband disallowed her on the day that he heard it; then he shall make her vow which she vowed, and that which she uttered with her lips, wherewith she bound her soul, of none effect: and the LORD shall forgive her.English Standard Version
But if, on the day that her husband comes to hear of it, he opposes her, then he makes void her vow that was on her, and the thoughtless utterance of her lips by which she bound herself. And the LORD will forgive her.New International Version
But 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.