《礼记·丧服小记》
作为媳妇，在为公婆服丧期间被丈夫休弃，因为恩断义绝，所以也就不再继续为公婆服丧。
既练而出，则已。未练而反，则期；既练而反，则遂之。再期之丧，三年也；期之丧，二年也。
As a daughter-in-law, she will no longer continue to mourn for her in-laws because of the divorce from her husband during the mourning period for her parents-in-law.