《徐霞客游记·粤西游日记五》
岩洞在穿云岩东北的山崖之上、在上岩的东隅，洞口也是朝向东南，外边也很高大明朗，在洞中放置了老君像。
岩在穿云东北崖之上，在上岩东隅，洞口亦东南向，外亦高朗，置老君像焉。
The cave is on the cliff to the northeast of the Cloud Penetrating Rock, at the east corner of the upper rock. The entrance of the cave also faces southeast, and the outside is also tall and bright, with the statue of Laozi placed in the cave.