《吕氏春秋·纪·季冬纪》
晋文公返回晋国后，介子推不肯接受封赏，他为自己赋诗道： 有龙飞翔，遍行天下。
晋文公反国，介子推不肯受赏，自为赋诗曰： 有龙于飞，周遍天下。
After Duke Wen of Jin returned to the state of Jin, Jie Zitui refused to accept the reward. He wrote a poem for himself: A dragon flies, all over the world.