《宋书·志·卷十五》
又考察六门都是在设置路障之内，况且禁止防卫违法事件，都由左右护卫军及领军管理，不知道京尹、建康令在门内的人及承办公事，是不是也应与中丞分道而行?
又寻六门则为行马之内，且禁卫非违，并由二卫及领军，未详京尹、建康令门内之徒及公事，亦得与中丞分道与不？
In addition, it was found that the six gates were all within the barricades, and moreover, the prevention of illegal incidents was managed by the left and right guards and the leaders of the army. It is not known whether Beijing Yin and Jiankang Ling, as well as people and official business within the gate, should also travel separately from Zhongcheng.