俱舍論疏 8.175

8.175

論「或言一處至如何別見」，第四也。若謂像色鏡面同處，見鏡中月如觀井水，近遠別見。

On the śāstra: "Or if it is said that they are in one place... how could they be seen distinctly?": This is the fourth. If one claims that the color-form of the reflection and the surface of the mirror occupy the same place, seeing the moon in the mirror would be like looking at water in a well, where near and far are seen distinctly.