Hong-wu: Year 21, Month 3, Day 16
22 Apr 1388
The minister Li Ren-tong and others, who had been sent by Annam, came to Court. When he was about to depart on his return home, 30 ding of paper money was conferred upon Ren-tong. Also, Xing Wen-bo, a director in the Ministry of Rites, was sent to take Imperial orders and 100 bolts each of patterned fine silks and of cloth and to proceed there to confer them upon the king Wei.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 7, page 2855