《礼记·内则》
如果儿子和媳妇不孝敬公婆，也用不着生气埋怨，可以先教育他们。如果教育了也不管用，那就可以责罚他们；如果责罚还不管用，那就把儿子赶出家门，把媳妇休回娘家。即令如此，也不对人明言其过，免得家丑外扬。
子妇未孝未敬，勿庸疾怨，姑教之；若不可教，而后怒之；不可怒，子放妇出，而不表礼焉。
If sons and daughters-in-law are not filial to their parents-in-law, they do not need to get angry and complain, and can educate them first. If education does not work, they can blame them; if blame does not work, they will drive their son out of the house and let their daughter-in-law return to her family. Even so, they do not tell others their mistakes, so as not to publicize the ugliness of the family.