Rigvedabrahmana 2.8

2.8

agnirjyotirjyotiragniriti taṃ jyotiḥ santaṃ jyotirityāha sa
satyaṃ vadati tasyāyaṃ vāṅmaya ātmā satyamayo bhavati satyamayā u
devā atha svāheti juhoti tasyaitāṃ devāḥ satyañjatasyāhutiṃ pratigṛhṇanti
rātryā u śīrṣṇansatyaṃ vadati sa yadiha vā api tata ūrdhvaṃ mṛṣā
vadati satyaṃ haivāsyoditaṃ bhavati rātryā u hi śīrṣantasatyaṃ vadatyatha
prātarjuhoti sūryo jyotirjyotiḥ sūrya iti taṃ jyotiḥ santaṃ jyotirityāha sa satyaṃ vadati tasyāyaṃ vāṅmaya ātmā satyamayo bhavati
satyamayā u devā atha svāheti juhoti tasyaitāṃ devāḥ satyakṛtasyāhutiṃ pratigṛhṇantyahra u śīrṣantasatyaṃ vadati sa yadiha vā api tata
ūrdhvaṃ mṛṣā vadati satyaṃ haivāsyoditaṃ bhavatyahna u hi śīrṣantasatyaṃ vadati
sa vā eṣo 'gnirudyatyāditya ātmānaṃ juhotyasāvastaṃ¹ yantsāye 'gnāvātmānaṃ juhoti rātrirevāhnijuhotyaho rātryāṃ prāṇa evāpāne juhotyapānaḥ prāṇe tāni vā etāni ṣaḍ juhvatyanyonya ātmānaṃ yo ha vā
etāni ṣaḍ juhvati vedājuhvata evāsya hutaṃ bhavati juhvata evāsya
dvirhutaṃ bhavati ya evaṃ veda sa yadiha vā api suriśāde²vaṃvidvānagnihotraṃ juhoti prati haivāsyaite āhutī devā gṛhṇanti yasyo ha vā
api devāḥ sakṛdaśnanti tata eva so 'mṛtaḥ satyamayo ha vā amṛtamayaḥ saṃbhavati ya evaṃ veda tadyathā ha vai śraddhādevasya satyavādinastapasvino hutaṃ bhavatyevaṃ haivāsya hutaṃ bhavati ya evaṃ vidvānagnihotraṃ
juhoti tasmādevaṃvidagnihotraṃ juhuyāditi