《资治通鉴·宋纪·宋纪五》
北魏国主拓跋焘认为地方郡守、县令大多贪赃枉法。夏季，五月，己丑，拓跋焘下诏，命令官吏和百姓可以检举告发地方郡守、县令贪污不法的行为。
魏主以民官多贪，夏，五月，己丑，诏吏民得举告守令不如法者。
Northern Wei emperor Tuoba Tao believed most county magistrates and prefects were corrupt. In the summer, on ji-chou day of the fifth month, he ordered that officials and commoners could impeach local county magistrates and prefects of corruption.