KENA UPANISHAD · 1/7

यच्छ्रोत्रेण न शृणोति येन श्रोत्रमिदं श्रुतम् ।
तदेव ब्रह्म त्वं विद्धि नेदं यदिदमुपासते ॥

yacchrotreṇa na śṛṇoti yena śrotramidaṃ śrutam ।
tadeva brahma tvaṃ viddhi nedaṃ yadidamupāsate ॥

That which hears not with the ear, that by which the ear's hearing is heard, know That to be the Brahman and not this which men follow after here.