Kauṣītaki Upaniṣad 2.5.1

2.5.1

tyarthaḥ | etadagnihotraṃ stotumanyaṃ nindati | atha pakṣāntare yāḥ prasiddhāḥ payodadhyādidravyasādhyā anyā vākprāṇāhutibhyāṃ vyatiriktā āhutayaḥ āsecamāntā devatāmuddiśya dravyatyāgāḥ, antavatyaḥ svarūpeṇa phalato'pi nāśavatyaḥ | tatra hetumāha tāḥ vākprāṇāhutibhyāmanyatvena prasiddhāḥ, karmamayyaḥ śarīravyāpārasādhyāḥ kṛtakāḥ phalataḥ svarūpataśca hi yasmāt tasmādantavatyo bhavanti spaṣṭaṃ | asyāgnihotrasya jñāne sarvasaṅgaparityāgalakṣaṇasanyāsamāha etaddha vai pūrve vidvāṃsaḥ ha prasiddhāḥ, vai smaryamāṇāḥ, pūrve'tītāḥ, etadvidvāṃso vāci agnau bhāṣaṇavyāpāravatyāṃ prāṇa ājyaṃ niḥśvāsocchvāsavyāpāraśūnyo hūyate, prāṇe cāgnau niḥśvāsocchvāsavyāpāravati vāgājyaṃ bhāṣaṇavyāpāraśūnyā hūyata ityetat jñānavantaḥ, agnihotraṃ na juhavāñcakruḥ agnihotrahomaṃ na kṛtavantaḥ sarvasaṅgaparityāgalakṣaṇaṃ sanyāsaṃ kṛtavanta ityarthaḥ | prāṇo vā ukthamiti kāṇvādigmākhāsṛkthaśabdasya prāṇe prasiddhatvāt tāṃ prasiddhamanurundhānā śrutiḥ prāṇamukthaśabdena nirdiśya tatra ṛgādidṛṣṭīrvidhātuṃ, asya brahmatve kauṣītakipaiṅgya-