《魏书·帝纪·卷四》
夫法令不行，原因在上，可让天下吏卒百姓，举报那些不守法纪律令的官员们。 
夫法之不用，自上犯之，其令天下吏民，得举告守令不如法者。 丙申，行幸云中。
Laws and regulations are not enforced because of the superiors. People and soldiers all over the world can report those officials who do not abide by laws and disciplines.