《战国策·中山·中山君飨都士》
由于羊羹没有分给自己，司马子期一生气便跑到楚国去了，还劝说楚王攻打中山。楚攻中山时中山君逃亡，有两个人提着武器跟在他身后。中山君回头对这两个人说： 你们是做什么的？ 
有二人挈戈而随其后者，中山君顾谓二人： 子奚为者也？ 
Because Yang Geng did not give himself a share, Sima Ziqi ran to Chu in anger and persuaded King Chu to attack Zhongshan. When Chu attacked Zhongshan, Zhongshan Jun fled, and two people followed him with weapons. Zhongshan Jun turned to these two men and said, "What are you doing?" 