《明史·列传·卷二百一十七》
十三年夏，忠顺王亲自到瓦剌拜访也先，居住了数月才回哈密，却派遣使者欺骗天子，声称自己遵守朝廷的命令不敢私自前往瓦剌。
十三年夏，亲诣瓦剌，居数月方还；而遣使诳天子，谓守朝命不敢往。
In the summer of the thirteenth year, the Zhongshun King personally went to Oirat to meet with Yesen, and resided there for several months before returning to Hami; but he sent an envoy to deceive the emperor, claiming that he had obeyed the orders of the imperial court and did not dare to go to Oirat on his own initiative.