《左传·昭公·昭公四年》
楚灵王不听，让庆封背上大斧头，在诸侯军队中巡行示众，让他说： 不要有人像齐国的庆封那样杀死他的国君，削弱国君的孤儿，来和他的大夫会盟！ 
王弗听，负之斧钺，以徇于诸侯，使言曰： 无或如齐庆封，弑其君，弱其孤，以盟其大夫。 
King Ling of Chu did not listen, he ordered Qing Feng to carry a big axe on his back, to tour the vassals' army to let everyone see, and asked him to say: "Don't be like Qing Feng of the State of Qi, who killed his sovereign and weakened the sovereign's orphan, and then made an alliance with his officials!"