《战国策·宋卫·梁王伐邯郸》
宋国使者说： 臣下请求允许宋国进攻赵国边境上的一座城邑，慢慢进攻，多耗些日子，以此来等待您的下属官吏守住它。 赵王说： 好。 
使者曰： 臣请受边城，徐其攻而留其日，以待下吏之有城而已。 赵王曰： 善。 
The messenger from the state of Song said: I humbly request that the state of Song attack a city on the border of the state of Zhao. We will attack slowly and prolong the battle, waiting for your subordinate official to guard the city. The king of Zhao said: That is good.