《资治通鉴·陈纪·陈纪八》
北周广州刺史于是于仲文的哥哥。他因与吴州总管赵文表不和，就假称得了心病，引诱赵文表来探视，然后亲手杀了他，于是对外宣称赵文表与尉迟迥通谋。
广州刺史于顗，仲文之兄也，与总管赵文表不协；诈得心疾，诱文表，手杀之，因唱言文表与尉迟迥通谋。
The Prefect of Guangzhou of the Northern Zhou, Yu Zhongwen was his brother. Because he was not in harmony with Wu Prefecture General Zhao Wenbiao, he pretended to have a heart disease to entice Zhao Wenbiao to come and visit him, and then personally killed him, and then declared to the outside that he and Yuchi Jiong were in cahoots.