《资治通鉴·汉纪·汉纪五十五》
渔阳人田豫劝告本郡太守鲜于辅说： 曹操尊奉天子来号令诸侯，最终能够平定天下，应该早早归顺他。 
渔阳田豫说太守鲜于辅曰： 曹氏奉天子以令诸侯，终能定天下，宜早从之。 
Tian Yu from Yuyang advised the prefect Xianyu Fu of his native prefecture: Cao Cao respects the emperor to command the princes, and will finally be able to pacify the world, he should submit to him early.