首楞嚴義疏注經 2.193

2.193

將，請也。誰，何也。我今請汝於所見中詳而擇之，何者是汝見體，何者是其物像。此正勸令揀。

"With" (jiang) means to ask. "Which" (shui) means what. I now ask you to examine and select in detail within what is seen: which is your nature of seeing, and which is an image of an object? This directly exhorts him to make the distinction.