《国语·晋语·献公伐翟柤》
郤叔虎退朝出来遇见士，说： 今晚国君睡不好觉，一定是为翟柤国。
出遇士，曰： 今夕君寝不寐，必为翟柤也。
Xi Shukhu exited the morning court where he met Shi Pi and said: The Lord will not sleep well tonight, it must be because of Zhai Yao.