《明史·列传·卷二百零二》
于是，皇帝便让西平侯前去劝谕他们，再派遣员外郎左缉出使到八百国，又让左缉给麓川平缅的宣慰颁赐冠带和袭衣。永乐五年，隶属于麓川、平缅军民宣慰使司的孟外的头目刀发孟前来朝觐，向皇帝进献大象和金器，散朋也来进献贡马，皇帝分别给他们赏赐钱币。六年，思行发向朝廷进献贡马和土产，向皇帝谢恩。
忠义卓然，深足嘉尚。今特升尔正五品，授奉政大夫、修正庶尹，封尔母为太宜人，俱锡诰命、银带及彩币表里，酬尔母子勋劳。陶孟、刀孟经等亦赐赉有差。
Therefore, the emperor sent Marquis Xiping to persuade them, and then dispatched Assistant Director Zuo Ji as an envoy to the 800 countries, and also had Zuo Ji grant official uniforms and robes to the Xuanfu of Lu Chuan and Pingmian. In the fifth year of Yongle, Dao Fa Meng, the head of Men Wai under the jurisdiction of the Lu Chuan and Pingmian Military and Civilian Xuanfu Division, came to pay homage, presenting elephants and goldware to the emperor, and San Peng also came to present tribute horses. The emperor rewarded them with money. In the sixth year, Sixingfa presented tribute horses and local products to the court to express his gratitude to the emperor.