Yong-le: Year 15, Month 11, Day 4
11 Dec 1417
Yan Lu-ji, the prefect of Sheng-hua Prefecture in Jiao-zhi, and others, memorialized that Champa had attacked and occupied the region, seized the administrative officials and would not let them attend to matters. Imperial orders were sent to the Feng-cheng Marquis Li Bin, the regional commander of Jiao-zhi, requiring him to deliberate on ways to handle the matter.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 13, page 2039/40