《明史·列传·卷二百一十七》
五年倒瓦答失里派使者向朝廷献贡三次，朝廷大臣觉得这样太烦琐，给他们规定一年献贡一次。
五年遣使三贡，廷议以为烦，定令每年一贡。
In five years, Tao-wa-da-shi-li sent envoys to pay tribute to the court three times. The court officials found it too much trouble and set a rule that they had to pay tribute once a year.