Mandukya Karika 3.31
Sanskrit Verse
मनोदृश्यमिदं द्वैतं यत्किंचित्सचराचरम् ।
मनसो ह्यमनीभावे द्वैतं नैवोपलभ्यते ॥ ३१ ॥
Transliteration
manodṛśyamidaṃ dvaitaṃ yatkiṃcitsacarācaram |
manaso hyamanībhāve dvaitaṃ naivopalabhyate || 31 ||
Translation
All these dual objects, comprising everything that is movable and immovable, perceived by the mind (are mind alone). For, duality is never experienced when the mind ceases to act.

Muni's Play