《徐霞客游记·游庐山日记》
走下文殊台，沿着山冈的西北面追溯溪流，即是瀑布的上流。
下台，循山冈西北溯溪，即瀑布上流也。
After getting off the Wenshu Terrace and following the northwest side of the mountainside to trace the stream, it was the upper reaches of the waterfall.