《国语·晋语·惠公斩庆郑》
已经战败就要处死有罪的人，如对有罪的人不能伏法，还怎么守卫国家疆土？
既败而诛，又失有罪，不可以封国。
Now that the war has been lost, the guilty must be executed. If the guilty cannot be punished, how can the country's territory be defended?