Atharvavedabrahmana 8.10

8.10

devā ha vai sahasrasaṃvatsarāya didīcire, teṣāṃ pañcaśatāni saṃvatsarāṇāṃ payupetānyāsannathedaṃ sarvaṃ śuśruvurye stomā yāni pṛṣṭhāni
yāni śastrāṇi te devā haha sāmivāsurūpa taṃ yajñakratuṃ jānīmo yaḥ
sahasrasaṃvatsarasya pratimā ko hi tasmai manuṣyā yaḥ sahasrasaṃvatsareṇa
yajeteti tadayātayāmamadhye yajñasyāpaśyaṃstenāyātayāmyāyapede
vyuṣṭirāsottāṃ pañcasvapaśyadṛci yajuṣi sāmni śānte'tha ghore, tāvā etāḥ pañca vyāhṛtayo bhavanti auṃ śrāvayāstu śrauṣaḍ yaja ye yajāmahe vauṣaḍiti te devā iha sāmivāsurūpa taṃ yajñakratuṃ jānīmo
yaḥ sahasrasaṃvatsarasya pratimā ko hi tasmai manuṣyā yaḥ sahasrasaṃvatsareṇa yajeteti tata etantāpayitaṃ sahasrasaṃvatsararaṇaṅgasyamapaśyaṃste hyeva stomā bhavanti tāni pṛṣṭhāni tāni śastrāṇi sa khalu
dvādaśamāsāṃ dīkṣābhireti dvādaśamāsānupasaṅgirdvādaśamāsāṃ sutyābhiratha yad dvādaśamāsāṃ dīkṣābhireti dvādaśamāsā 'pasadbhiritenaitāvagnārkāvāpnoti atha yad dvādaśamāsāṃ sutyābhistenedaṃ mahadukthamavāpnoti te devā haha sāmivāsurūpa taṃ yajñakratuṃ jānīmo yaḥ sahasrasaṃvatsarasya pratimā ko hi tasmai manuṣyā yaḥ sahasrasaṃvatsareṇa yajeteti tata etaṃ saṃvatsarantāpaścittasyāṅgasyamapaśyaṃ ste hyeva stomābhavanti tāni pṛṣṭhāni tāni śastrāṇi te devā iha sāmivāsurūpa taṃ yajñakratuṃ jānīmo yaḥ sahasrasaṃvatsarasya pratimā ko hi tasmai
manuṣyā yaḥ sahasrasaṃvatsareṇa yajeteti tata etaṃ dvādaśāhaṃ saṃvatsarasyāṅgasya mapaśyaṃste hyeva stomā bhavanti tāni pṛṣṭhāni tāni śastrāṇi sa khalu dvādaśāhaṃ dīkṣābhireti dvādaśāhamupasadbhirrdvādaśāhaṃ
sutyābhiratha yad dvādaśāhaṃ dīkṣābhireti dvādaśāhamupasaṅgistenaitāvagnāvaiṣṇavamavāpnotyatha yad dvādaśāhaṃ sutyābhistenedaṃ mahadukthyamavāpnoti te devā haha sāmivāsurupa taṃ yajñakratuṃ jānīmo yaḥ
sahasrasaṃvatsarasya pratimā ko hi tasmai manuṣyo yaḥ sahasrasaṃvatsareṇa
yajeteti tata etaṃ pṛṣṭhāḥ ṣar̤ahaṃ dvādaśāhasyāñjasyamapaśyaṃ ste hyeva
stomā bhavanti tāni pṛṣṭhāni tāni śastrāṇi te devā haha sāmivāsurupa taṃ yajñakratuṃ jānīmo yaḥ sahasrasaṃvatsarasya pratimā ko hi
tasmai manuṣyo yaḥ sahasrasaṃvatsareṇa yajeteti tata etaṃ viśvajitaṃ
pṛṣṭhāṃ ṣar̤ahasyāñjasyamapaśyaṃste hyeva stomā bhavanti tāni pṛṣṭhāni
tāni śastrāṇi te devā haha sāmivāsurupa taṃ yajñakratuṃ jānīmo yaḥ
sahasrasaṃvatsarasya pratimā ko hi tasmai manuṣyo yaḥ sahasrasaṃvatsareṇa
yajeteti sa vā eṣa viśvajid yaḥ sahasrasaṃvatsarasya pratimaiṣa ha
prajānāṃ prajāpatiryadviśvajiditi brāhmaṇam