Bhagavatapurana 4.22.29

4.22.29

nimitte sati sarvatra jalādāv api pūruṣaḥ /
ātmanaś ca parasyāpi bhidāṃ paśyati nānyadā //

29. And in the world also, only when water or mirror and other conditions are present, man sees the difference of self from any other thing (viz., reflection), but not otherwise (i.e., in the absence of those conditions).