《左传·定公·定公六年》
二月，定公发兵侵袭郑国，夺取匡地，这是为晋国去讨伐郑国的攻打胥靡。
二月，公侵郑取匡，为晋讨郑之伐胥靡也。
In the second month, Duke Ding sent troops to attack Zheng, seizing Kuangdi. This was because Jin had gone to punish Zheng for attacking胥靡.