Hong-wu: Year 27, Month 5, Day 16
14 Jun 1394
The minister Ruan Jun and others, who had been sent by Annam, presented a memorial and offered tribute of local products after having come through Guang-dong. The Emperor sent orders to the officials of the Ministry of Rites, saying: "Annam rebelled and killed its ruler. It is not permitted to come to Court to offer tribute. I have already instructed the Guang-xi Provincial Administration Office not to receive their envoys. Now, they have come through Guang-dong. The officials have, without requesting orders, acted without authority in receiving these envoys. Hastily send someone to investigate and punish them." In addition, the tribute was refused rather than received.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 8, page 3401