《元史·本纪·卷十八》
十九日，任命乌撒、乌蛮等地宣慰使司同知牙那木为代理兵部尚书，佩戴虎符，出使马答儿的阴。
癸巳，以同知乌撒乌蒙等处宣慰使司事牙那木假兵部尚书，佩虎符，使马答儿的阴。
On the 19th day, the Middle Counselor Yanzimu of the Xuanwei Provincial Governor's Office of Wusa and Wuman was appointed as the acting Minister of the Ministry of War, awarded the tiger talisman, and sent on an envoy to the Yin of Mad'er.