《左传·定公·定公十年》
回兵以后，晋国人责问卫国背叛的原因，卫国人说： 由于涉佗、成何。 
反役，晋人讨卫之叛故，曰： 由涉佗、成何。 
After the troops went back, the people of Jin questioned Wei for betraying them. The people of Wei said: “It is because of She Tuo and Cheng He.”