《左传·成公·成公十七年》
厉公准备发动群臣讨伐郤至，胥童说： 一定要先从三郤开刀。他们族大，怨恨多。
厉公将作难，胥童曰： 必先三郤，族大多怨。
Duke Li prepared to mobilize his ministers to attack Xi Zhi, Xu Tong said: It is necessary to start with the three Xi first. Their clan is large and resentful.