Hong-zhi: Year 16, Month 10, Day 29
17 Nov 1503
The attendant minister Guo You-yan and others who had been sent by Li Hui, the king of the country of Annam, presented a memorial, a salutory letter and local products in expression of gratitude for Imperial grace. On their departure, brocaded silks and other goods were conferred upon Hui. A banquet as well as variegated silks, clothing and other goods as appropriate were conferred upon You-yan and the others.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 59, page 3807