《元史·列传·卷九十二》
过几天，桑哥又上奏说： 审问中书参政郭佑，许多地方逃避责任，托言生病，居其位而不尽其职。
数日，桑哥又奏： 鞫中书参政郭佑，多所逋负，尸位不言，以疾为托。
A few days later, Sangge reported to the emperor again, saying: "I interrogated Zhongshu Censor Guo You, who kept evading responsibility and was feigning illness. He was taking up the position but not fulfilling his duties."