《水经注·卷十四》
询水又在左边汇合了盘山水。盘山水发源于盘山上，山势险峻，人迹罕至。离山三十多里，远远望去，从二十多里高的山上，泻下一道白练般的飞瀑，山泉沿着溪涧顺流而下，从西北注入沟水。
泃水又左合盘山水，水出山上，其山峻险，人迹罕交，去山三十许里，望山上水，可高二十余里，素湍皓然，颓波历溪，沿流而下，自西北转注于泃水。
The Xun River also joins the Panson River on the left. Panson River originates from Mount Panson, which is rugged and sparsely populated. More than 30 li away from the mountain, one can see a white waterfall cascading down from the mountain that is more than 20 li high. The mountain spring flows down the stream and into the canal from the northwest.