《左传·僖公·僖公二十四年》
寺人披回答说： 小臣原来认为国君回国以后，已经了解情况了。
对曰： 臣谓君之入也，其知之矣。
The eunuch Pi answered: "The small servant originally thought that after the monarch had returned to the country, he had already understood the situation."