《旧唐书·列传·卷一百二十一》
李渤上疏陈论说： 县令不该抓宦官，宦官不该殴打御史台的囚犯，他们的罪过是相同的。
渤疏论之曰： 县令不合曳中人，中人不合殴御囚，其罪一也。
Li Bo submitted a memorial saying: The county magistrate should not arrest the eunuch, and the eunuch should not beat the prisoner of the Yushi Office. Their crimes are the same.