Hong-zhi: Year 14, Month 3, Day 27
14 Apr 1501
The chieftain Si Wan and others who had been sent by Bu-la-lang, the pacification superintendent of the Ava-Burma Pacification Superintendency in Yun-nan, came to offer tribute. On their departure, brocaded silks and other goods were conferred upon Bu-la-lang and his wife, while a banquet as well as silks and other goods, in accordance with the precedents, were conferred upon Si Wan and the others. The Ministry of Rites examined the envoy's attendants and found that there were some whose names were not registered in the despatch note. Thus, it requested that the officials who had originally escorted them, and those who had examined them and allowed them to pass, be arrested and punished. This was approved. It was also ordered that, in future, when yi persons were examined and allowed through at the border passes, officials were to thoroughly examine them, and that any official who, in pursuit of private gain, connived at impropriety, was to be punished without pardon.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 58, page 3139