首楞嚴義疏注經 2.633

2.633

因人說梅，梅何有說，故非梅生。若因人說，水便口流，口既流水，應合聞說，何用耳聞？口若不聞唯耳聞者，耳既聞說，亦合流水，故云此水何不耳中流出。說不得梅，梅不至口。耳自聞說，水却口流。說梅與水，二俱叵得。

Because a person speaks of plums, and the plums do not speak, it does not arise from the plums. If because a person speaks, water then flows from the mouth, since the mouth flows with water, it ought to hear the speech; why use the ears to hear? If the mouth does not hear and only the ears hear, since the ears hear the speech, they also ought to flow with water; hence it says, 'why does this water not flow out from the ears?' The speaking cannot grasp the plums, and the plums do not reach the mouth. The ears of themselves hear the speech, but the water instead flows from the mouth. Both the speech of plums and the water are ungraspable.