Yong-le: Year 3, Month 8, Day 29
22 Sep 1405
The persons sent by Dao Xian-da, the pacification superintendent of Che-li, offered tribute of gold and silver utensils and local products in gratitude for the conferral of a patent, Imperial orders and a tally. It was ordered that paper money and silks be conferred upon them.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 10, page 707