《明史·志·卷六十五》
正德初年，严格皇城红铺的巡行视察，每天命令留下五名守卫指挥，监督皇城内外夜里巡逻的士兵。
正德初，严皇城红铺巡徼，日令留守卫指挥五员，督内外夜巡军。
At the beginning of Zhengde, strict patrols were carried out in the Red Boulevard of the imperial palace. Every day, five guards were commanded by a chief to lead the soldiers in patrolling inside and outside the imperial palace at night.