首楞嚴義疏注經 1.319

1.319

設汝執言能見面者，汝心及眼應處虛空，以根境相對方成見故。若許處空，顯是在外，如何復執心居身內。又若在空，即同他人，自然不是汝之心體。此之二過，應立量云：汝之心靈定不在內，見汝面故，猶如他人；破次過者，但改宗云定非汝體，因喻如前。

If you hold that [the eye] is able to see the face, your mind and eyes must reside in empty space, because seeing is established only when the faculty and object face each other. If you allow that they reside in space, that clearly puts them on the outside; how could you still hold that the mind dwells inside the body? Furthermore, if they are in space, they are just like another person's, and naturally not the substance of your mind. For these two errors, one should establish the syllogism: 'Your sentient mind is definitely not inside; because it sees your face; like another person.' To refute the subsequent error, one merely changes the thesis to: 'It is definitely not your substance'; the reason and example are as before.