《左传·庄公·庄公三年》
冬季，鲁庄公带领护卫军屯驻在滑地多夜，打算会见郑伯，策划纪国的事务。
冬，公次于滑，将会郑伯谋纪故也。
In winter, Duke Zhuang of Lu led the guards to station in Huadi for many nights, planning to meet with the Earl of Zheng to plan for the affairs of the State of Ji.