《魏书·列传·卷二十》
封回应答说： 过去孔子任司寇，十天就杀了少正卯，鲁国畏惧，欺诈之风自然消失。
回对曰： 昔孔丘为司寇，十日而诛少正卯，鲁国肃然，欺巧自息。
Feng Hui replied: In the past, when Confucius was Si Kou, he killed Shao Zhengmao within ten days, and the State of Lu was in awe, and the wind of deceit naturally disappeared.