Srimad-Bhagavatam: Canto 12 - Chapter 1 - Verse 30
Sanskrit:
न हि सत्यस्य नानात्वमविद्वान् यदि मन्यते ।नानात्वं छिद्रयोर्यद्वज्ज्योतिषोर्वातयोरिव ॥ ३० ॥
ITRANS:
na hi satyasya nānātvamavidvān yadi manyatenānātvaṁ chidrayor yadvajjyotiṣor vātayor iva
Translation:
There is no material duality in the Absolute Truth. The duality perceived by an ignorant person is like the difference between the sky contained in an empty pot and the sky outside the pot, or the difference between the reflection of the sun in water and the sun itself in the sky, or the difference between the vital air within one living body and that within another body.