《汉书·传·隽疏于薛平彭传》
他的父亲于公曾任县狱史、郡决曹等官职，判案公平，触犯法网而被于公依法判刑的人，没有因不服而心怀怨恨的。
其父于公为县狱吏、郡决曹，决狱平，罗文法者于公所决皆不恨。
His father, Yu Gong, had once held positions such as county prison historian and county clerk of records, and had ruled fairly. No one who was sentenced by Yu Gong ever harbored resentment because of their conviction.