《左传·襄公·襄公二十年》
楚国人役使蔡国没有一定的常规，公子燮要求继承先君的遗志以有利于蔡国，没有办到而死去。
楚人使蔡无常，公子燮求从先君以利蔡，不能而死。
The people of Chu commanded Cai and did not have a fixed schedule. Gongzizhi Xie wanted to inherit the legacy of his former lord to benefit Cai, but he died without being able to do anything.