Hong-wu: Year 24, Month 12, Day 19
13 Jan 1392
...Bu-mu, the prefect of Wu-sa Military and Civilian Prefecture, together with the superintendent of the Lu-chuan/Ping-mian Military and Civilian Pacification Superintendency, offered tribute of horses, rhinoceros, elephants and local products. Paper money, as appropriate, was conferred upon all of them.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 7, page 3164