During the Spring and Autumn Period, Fan Li first assisted Gou Jian, the King of Yue, and later left him. What's this story called?

Once rabbits are caught, hounds are killed for food-when they lose their usefulness, trusted assistants are eliminated.

The original sentence is "a sly rabbit dies, and a running dog cooks." In other words, when the enemy was wiped out, his original help lost its effect. At first, Fan Li was a consultant to Gou Jian. After he helped Gou Jian to restore the country, he retired with Shi (the word Jianghu is said to have been invented). At the same time, he also has a good friend, who is also the hero of Gou Jian's restoration of the country. Fan Li wanted to invite his friends to retire with him. He clearly analyzed Gou Jian's character. This is "when a rabbit dies, a dog cooks", and there are similar idioms such as "when a bird dies, a dog hides a bow".