《太平广记·卷八十四·异人四》
衡山西面原野附近有个朱陵洞，这里山势险峻奇绝，有许多大树和猛兽，人到了这里都会迷路，或者遇上巨大的蟒蛇挡住道路而不能前进。
衡岳西原，近朱陵洞，其山险绝，多大木猛兽。人到者率迷路，或遇巨蛇不得进。
West of Mount Hengshan, near the wilderness, there is a Zhuling Cave. The mountains here are steep and strange, with many big trees and ferocious beasts. People who come here will get lost, or encounter giant pythons blocking the road and cannot move forward.