《明史·列传·卷五十九》
也先说： 为何削减我的马价，给我的布帛多被剪断，前后派人去大多不归，又减少了岁赐？ 
也先曰： 奈何削我马价，予帛多剪裂，前后使人往多不归，又减岁赐？ 
Yesian said: “Why did you cut the price of my horses, why did you cut short the cloth you gave me, why did so many of the envoys I sent out never return, and why did you reduce the annual tribute?”