《墨子·70章 号令》
门尉每天白天点名三次，晚上击鼓关门后再点名一次，守将随时派人检查巡察，记上擅自离开岗位人的姓名。
门尉昼三阅之，莫，鼓击门闭一阅，守时令人参之，上逋者名。
The door guard will call three times a day during the day, and again after closing the door by beating the drum at night. The guard will send someone to patrol and inspect at any time, and record the names of those who leave their posts without permission.