One who is prohibited by a neder to benefit from his father-in-law, and he wants to give money to his daughter —- he says to her: “This money is given to you as a gift, provided that your husband has no rights in it, but that you put it in your mouth.”

But the neder of a widow or of a divorcee . . . shall stand against her (Numbers 30:10). How? [If] she said: “I will be a Nazirite after thirty days” —- even if she marries within the thirty days, he cannot revoke it.  [If] she vowed while under her husband's authority, he may revoke it. How? If she said: “I will be a Nazirite after thirty [days]” —- even if she is widowed or divorced within the thirty [days], it is revoked. [If] she vowed on the same day, [and] was divorced on the same day, [and] he took her back on the same day, he cannot revoke it. This is the general rule: If any woman had entered into her own authority for even one hour, he cannot revoke her neder.