《旧唐书·列传·卷四十八》
魏知古当初任黄门侍郎时，上表推荐洹水县令吕太一、蒲州司功参军齐遆、前右内率府骑曹参军柳泽；到主持吏部尚书事务，又提拔人才用密县县尉宋遥、左补阙袁晖、右补阙封希颜、伊阙尉陈希然，后来这些人都一直处在清要地位，时论认为他有知人的好眼光。他有文集七卷。源乾曜，相州临漳人。
源乾曜，相州临漳人。
When Wei Zhigu was the Director of the Imperial Attendant, he recommended Lu Taiyi, the magistrate of Huan County, Qi Zhao, the staff officer of the Pu Prefecture, and Liu Ze, the staff officer of the Former Right Inner Court Cavalry. When he was in charge of the Ministry of Personnel, he promoted Song Yao, the county magistrate of Mi County, Yuan Hui, the Left Attendant, Feng Xiyan, the Right Attendant, and Chen Xiran, the magistrate of Yique. Later, these people held important positions, and public opinion believed that he had a good eye for talent. He had a collection of seven volumes. Yuang Qianyong, a native of Linzhang, Xiangzhou.