《商君书·赏刑》
后来，晋文公发兵进攻曹国及卫国的五鹿，回军时又推翻了郑国的矮墙，命令卫国的田垄一律改东西方向，用来方便自己国家的兵车通过。
举兵伐曹、五鹿，及反郑之埤，东徵之亩，胜荆人于城濮。
Later, Duke Wen of Jin sent troops to attack the state of Cao and Wulu in the state of Wei. When he returned, he overthrew the short wall of the state of Zheng and ordered the boundaries of the state of Wei to be changed to the east and west, so as to facilitate the passage of chariots from his own country.