Musannaf Ibn Abi Shayba 18:1336

Abu Bakr narrated to us, he said: Hatim ibn Isma'il narrated to us, from Ja'far, from his father, he said: A woman made a vow that she would be led with a nose-ring (zimam) in her nose. Her camel then fell, and its nose-ring broke, and her nose was pierced (as a result). She came to Ali seeking her right (regarding the vow), but he invalidated it and said: "You only vowed it to Allah."