Vishnupurana 2.16.22

2.16.22

sitanīlādibhedena yathaikaṃ dṛśyate nabhaḥ
bhrāntadṛṣṭibhir ātmāpi tathaikaḥ san pṛthak pṛthak //

"In like manner do thou, oh king, who knowest what duty is, regarding equally friend or foe, consider yourself as one with all that exists in the world. Even as the same sky is apparently diversified as white or blue, so Soul, which is in truth but one, appears to erroneous vision distinct in different persons. That One, which here is all things, is Achyuta (Vishńu); than whom there is none other. He is I; he is thou; he is all: this universe is his form. Abandon the error of distinction."