Amritabindu Upanishad 2
मन एव मनुष्याणां कारणं बन्धमोक्षयोः । बन्धाय विषयासक्तं मुक्त्यै निर्विषयं स्मृतम्
Mana eva manuṣyāṇāṁ kāraṇaṁ bandha-mokṣayoḥ, bandhāya viṣayāsaktaṁ muktyai nirviṣayaṁ smṛtam
The mind alone is the cause of bondage and liberation for human beings — attached to objects, it binds; freed from objects, it liberates.