Numbers 30:6

ואם הניא אביה אתה BUT IF HER FATHER DISALLOWED HER — The Hebrew signifies, “if he withholds her” from the vow, that is to say, that he annuls it for her. I would not know what this expression הניא, “withholding”, implies (i.e., how he withholds her) — but when it states, (v. 9) “But if on the day that he hears, he withholds her and annuls [her vows]”, one must admit that “the withholding” consists in “annulling the vow” (i.e. in exclaiming מופר לך) (Sifrei Bamidbar 153:6). But still the plain meaning is that it is a term for “withholding” and “removing” (and the word והפר only shows how and by what means she is to be withheld from keeping her vow); and similar is (Numbers 32:7): “And wherefore do you remove (תניאון) [the heart of the children of Israel from the idea of passing over the land]”; and so, too, (Psalms 141:5): “Oil so choice, let not my head turn away (יניא), and similar, also, (Numbers 14:34): “And ye shall know My turning aside (תנואתי)” — i.e. ye shall know that ye have turned aside from Me. וה' יסלח לה AND THE LORD SHALL FORGIVE HER — Of what is Scripture here speaking? Of a woman who, e.g., vowed that she would become a Nazarite, and whose father heard it and annulled it for her, but she knew it not, and transgressed her vow and drank wine or made herself unclean by means of a corpse. It is such a woman who requires forgiveness even though it (her vow) has been annulled. — And if those whose vows have been annulled require forgiveness in such a case, how much more is this so for those whose vows have not been annulled and have been transgressed! (Sifrei Bamidbar 153:6; cf. Kiddushin 81b).

וְאִם־הֵנִ֨יא אָבִ֣יהָ אֹתָהּ֮ בְּי֣וֹם שׇׁמְעוֹ֒ כׇּל־נְדָרֶ֗יהָ וֶֽאֱסָרֶ֛יהָ אֲשֶׁר־אָסְרָ֥ה עַל־נַפְשָׁ֖הּ לֹ֣א יָק֑וּם וַֽיהֹוָה֙ יִֽסְלַח־לָ֔הּ כִּי־הֵנִ֥יא אָבִ֖יהָ אֹתָֽהּ׃

But if her father disallow her in the day that he hears; not any of her vows, or of her bonds with which she has bound herself, shall stand: and the Lord shall forgive her, because her father disallowed her.