《徐霞客游记·粤西游日记二十七》
在各洞中徘徊了很久之后，才又经过十一级梯子下来，就见岩洞下抬头守候着的有几十人，都来慰劳登岩洞的劳苦，并且说： 我们这些残存下来的百姓，都是靠这个岩洞两度免于交趾人的灾难。
徘徊各洞既久，乃复历十一梯而下，则岩下仰而伺者数十人，皆慰劳登岩劳苦，且曰： 余辈遗黎，皆藉此岩再免交人之难。
After wandering around the caves for a long time, I came down the eleven ladders again. I saw dozens of people waiting at the bottom of the cave, all to comfort the laborers who climbed the cave, and said: We, the surviving people, are all thanks to this cave to avoid the disasters of the Jiaozhi people twice.