《元史·本纪·卷九》
二十七日，连州守将过元龙已经投降又重新叛变，塔海率军前去讨伐他，过元龙弃城逃走。
丙戌，连州守过元龙已降复叛，塔海将兵讨之，元龙弃城遁。
On the 27th, Guo Yuanlong, the defender of Lianzhou, surrendered and then rebelled again. Tahai led the army to punish him, and Guo Yuanlong abandoned the city and fled.