Kaushitakopanishad 5.2

5.2

sa hovāca prāṇo'smi prajñātmā taṃ māmāyuramṛtamityupāsvāyuḥ sa prāṇaḥ prāṇo vā āyuḥ prāṇa u vā amṛtaṃ yāvaddhyasmiñcharīre prāṇo vasati tāvadāyuḥ prāṇena hyevāmuṣmiṃlloke'mṛtatvamāpnoti prajñayā satyaṃ saṅkalpaṃ †sa yo māmāyuramṛtamityupāste sarvamāyurasmiṃlloka ityāpnotyamṛtatvamakṣitiṃ svarge
loke tadvaika āūrekabhūyaṃ vai prāṇā gacchantīti na hi kaścana
śaknuyāt sakṛdvācā nāma ‡prajñāpayituṃ cakṣuṣā rūpaṃ śrotreṇa śabdaṃ
manasā § dhyātumityekabhūyaṃ vai prāṇā bhūtvaikaikaṃ sarvāṇyevaitāni
prajñāpayanti vācaṃ vadantīṃ sarve prāṇā anuvadanti cakṣuḥ paśyat
sarve prāṇā anupaśyanti śrotraṃ śṛṇvat sarve prāṇā anuśṛṇvanti
mano dhyāyat sarve prāṇā anudhyāyanti prāṇaṃ prāṇantaṃ sarve
prāṇā anuprāṇanti evamu haitaditi hendra uvācāsti tveva
prāṇānāṃ niḥśreyasamiti