《三国志·魏书·程郭董刘蒋刘传》
边界负责探查的士兵得到孙权的书信，刘放就将信件里的言辞修改了，往往换掉其中的文字，但语句也能符合，将信件送给征东将军满宠，让他做出要归顺蜀国的样子，将孙权的信件封好再展示给诸葛亮。
边候得权书，放乃改易其辞，往往换其本文而傅合之，与征东将军满宠，若欲归化，封以示亮。
When the border scout received Sun Quan's letter, Liu Fang would modify the wording in the letter, often changing the text but keeping the meaning the same. He would then give the letter to General of the East Man Chong, making it seem like he wanted to surrender to Shu, reseal Sun Quan's letter, and then show it to Zhuge Liang.