《资治通鉴·汉纪·汉纪五十》
及至封、徐奉为张角做内应的事情败露，灵帝斥责诸位常侍说： 你们常说党人图谋不轨，将他们全都禁锢起来，有人甚至遭到诛杀。
及封谞、徐奉事发，上诘责诸常侍曰： 汝曹常言党人欲为不轨，皆令禁锢，或有伏诛者。
Until the incident of Feng and Xu奉 being Zhang Jiao's internal agent was exposed, Emperor Ling reprimanded all the Changshi and said: You often say that partisans are plotting wrongdoing, and you imprison all of them, and some of them are even executed.