《左传·宣公·宣公十八年》
他和宣公策划以后就到晋国去聘问，想要用晋国人的力量来去掉三桓。
与公谋而聘于晋，欲以晋人去之。
After plotting with Duke Xuan, he went to the state of Jin and paid a visit, in the hope of getting Jin to get rid of the Three Huan families.