Atharvavedabrahmana 1.8

1.8

tamaṅgirasamṛṣimabhyaśrāmyadabhyatapattamatapattasmācchrāntāttaptātsantaptādviṃśino'ṅgirasa(2)ṛṣonniramimata,tān viṃśino'ṅgirasa ṛṣonabhyaśrāmyadabhyatapattamatapat, tebhyaḥ śrāntebhyastaptebhyaḥ santaptebhyo daśatayānāṅgirasānāṣeyānriramimata, ṣor̤aśino'ṣṭādaśino dvādaśina
ekavaṃśaṃstṛcāṃścatukṛcān pañcarcon ṣar̤arcām dvayacān saptarcāmiti
tānaṅgirasa ṛṣīnāṅgirasāṃścārṣeyānabhyaśrāmyadabhyatapattamatapattebhyaḥ
śrāntebhyastaptebhyaḥ santaptebhyo yān mantrānapaśyatsa āṅgiraso vedo'bhavattamāṅgirasaṃ vedamabhyaśrāmyadabhyatapattamatapattasmācchrāntāttaptāt
santaptānnamaditi haitamakṣaraṃ vyabhavat | sa ya icchetsarvvairai tairaṅgirobhirāṅgirasaiśca kurvīyetyetayaiva taṃ mahāvyāhṛtyā kurvīta sarvvair hya vā asyaitairaṅgirobhirāṅgirasaiśca kṛtaṃ bhavati ya evaṃ veda yasyaivaṃ vidvānaivametayā mahāvyāhṛtyā kurute