首楞嚴義疏注經 2.370

2.370

「阿難！若因明有，應不見暗；如因暗有，應不見明。如是乃至因空、因塞，同於明暗。」

"Ānanda! If it exists caused by light, it should not see darkness; if it exists caused by darkness, it should not see light. And so on, even being caused by voidness or caused by obstruction, it is just the same as with light and darkness."