Zheng-tong: Year 13, Month 4, Day 14
16 May 1448
The attendant minister He Fu and others, who had been sent by Li Jun, the king of the country of Annam, presented a memorial and offered tribute of gold and silver utensils as well as elephant tusks, rhinoceros horn and other local products. A banquet as well as biao-li of variegated silk, suits of clothing interwoven with gold thread, and others goods, as appropriate, were conferred upon them.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 29, page 3197