首楞嚴義疏注經 2.648

2.648

破空生流也。流從空生，空體常在，流應常生，虛空性遍，流亦應遍，斯則俱見瀑流，應無世界，又如何分水陸空行耶？

Refuting space producing the flow. If the flow arose from space, since the substance of space is constantly present, the flow should constantly arise; since the nature of empty space is omnipresent, the flow should also be omnipresent; then one would everywhere see rushing torrents and there should be no worlds, and how could one distinguish traveling on water, land, and through space?