Can. 1202 The obligation arising from a promissory oath ceases:
1º if it is remitted by the person for whose benefit the oath was made;
2º if the matter sworn to is substantially changed or if, after the circumstances have changed, it becomes either evil or entirely indifferent or, finally, impedes a greater good;
3º if the purpose or a condition under which the oath may have been taken ceases;
4º by dispensation or commutation, according to the norm of can. 1203.