《徐霞客游记·游庐山日记》
从楼侧向西面走下山沟，涧溪流水铿然地泻出峡石口，此即是瀑布的下流。
从楼侧西下壑，涧流铿然泻出峡石，即瀑布下流也。
I walked down the gully from the side of the building to the west, and the stream of water flowed out of the stone mouth of the gorge with a clanging sound. This is the downstream of the waterfall.