Brihadaranyaka Upanishad 6.1.14

6.1.14

sā ha vāguvāca yadvā ahaṃ vasiṣṭhāsmi tvaṃ tadvasiṣṭho'sīti yadvā ahaṃ pratiṣṭhāsmi tvaṃ tatpratiṣṭho'sīti cakṣuryadvā aham̐ saṃpadasmi tvaṃ tatsaṃpadasīti śrotraṃ yadvā ahamāyatanamasmi tvaṃ tadāyatanamasīti mano yadvā ahaṃ prajātirasmi tvaṃ tatprajātirasīti retastasyo me kimannaṃ kiṃ vāsa iti yadidaṃ kiṃcā śvabhya ā kṛmibhya ā kīṭapataṅgebhyastatte'nnamāpo vāsa iti na ha vā asyānannaṃ jagdhaṃ bhavati nānannaṃ parigṛhītaṃ ya evametadanasyānnaṃ veda tadvidvām̐saḥ śrotriyā aśiṣyanta ācāmantyaśitvācāmantyetameva tadanamanagnaṃ kurvanto manyante

The organ of speech said, 'That attribute of the Vasiṣṭha which I have is yours.' The eye: 'That attribute of steadiness which I have is yours.' The ear: 'That attribute of prosperity which I have is yours.' The mind: 'That attribute of abode which I have is yours.' The organ of generation: 'That attribute of generation which I have is yours.' (The vital force said :) 'Then what will be my food and my dress?' (The organs said :) 'Whatever is (known as) food, including dogs, worms, insects and moths, is your food, and water your dress.' He who knows the food of the vital force to be such, never happens to eat anything that is not food, or to accept anything that is not food. Therefore wise men who are versed in the Vedas sip a little water just before and after eating. They regard it as removing the nakedness of the vital force.

6.1.14.p1

iti ṣaṣṭhādhyāye prathamaṃ brāhmaṇam