《史记·三十世家·郑世家》
晋景公想派军救助宋国，伯宗进谏晋君说： 上天正兴助楚国，不能攻打楚。 
晋景公欲发兵救宋，伯宗谏晋君曰： 天方开楚，未可伐也。 
Duke Jing of Jin wanted to send an army to save Song, but Bozong remonstrated with the Lord of Jin, saying: "Heaven is currently helping Chu, we cannot attack them."