If a secret piece of news is divulged by a spybefore the time is ripe, he must be put to death together with the man to whom the secret was told.

• 凡军之所欲击；城之所欲攻；人之所欲杀；必先知其守将；左右；谒者；门者；舍人之姓名；令吾间必索知之.