Kauṣītaki Upaniṣad 1.7.4

1.7.4

uktamuktamāha, yaḥ prasiddha upāptakaḥ evaṃ veda uktena prakāreṇa upāste tasya prāṇasya brahmaṇo mano dūtamityādinopāsakasya upaniṣadrahasyavrataṃ na yācet prāṇātyaye'pi yājñāṃ na kuryāt | iti upaniṣatkathanasamāptyarthaḥ | ayājñāyāṃ dṛṣṭāntamāha, tat tatrāyājñāyāṃ dṛṣṭāntaḥ, yathā dṛṣṭānte grāmaṃ brāhmaṇādisamākīrṇaṃ deśaviśeṣaṃ bhikṣitvā bhikṣārthaṃ pratigṛhaṃ gatvā alabdhvā ekamapi sikthamaprāpya upaviśet tato bhikṣāprāptau nirāśaḥ sannupaveśanaṃ kuryāt tadaprāptau sañjātakrodhaḥ, evaṃ saṅkalpavān | bhikṣukasya saṅkalpamāha, nāhamato dattamaśnīyāāmanena grāmeṇa militenāmilitena vā dattaṃ samarpitaṃ nāśnīyāmahaṃ bhojanaṃ na karavāṇi ahaṃ bhikṣukaḥ | ityanena prakāreṇa saṅkalpe vartamāne'smin, ya evādāhvalena prasiddhāsta eva na tvanye, enaṃ khasmādaprāptabhikṣaṃ svebhyo vigataspṛhaṃ ye purastāt pūrvamasmāt saṅkalpāt pratyācakṣīran gacchāsmatto na dāsyāma iti nirākaraṇaṃ kuryuḥ, ta eva pratyākhyātāra eva na tvanye enamayācakaṃ tanmukhāvalokanaparāṅmukhamupamantrayante upamantraṇaṃ