Bhagavad Gita 15.18

यस्मात्क्षरमतीतोऽहमक्षरादपि चोत्तमः।अतोऽस्मि लोके वेदे च प्रथितः पुरुषोत्तमः ॥१५.१८॥

yasmātkṣaramatīto’hamakṣarādapi cottamaḥato’smi loke vede ca prathitaḥ puruṣottamaḥ

As I transcend the perishable and am even higher than the imperishable, I am declared to be the highest Purusha in the world and in the Vedas.

गीता