Atharvavedabrahmana 6.10

6.10

atha ye purastāddaśavājyabhāgāḥ pañca prayājā dvāvādhārau
dvāvājyabhāgāvāgneyā ājyabhāgānāṃ prathamaḥ saumyo dvitīyo
havirbhāgānāṃ haviddhaiva saumyamāgneyaḥ puroḍāśo'gniṣomīya upāṃśuyājo'gnīṣomīyaḥ puroḍāśo'gniḥ sviṣṭakṛdityete madhyataḥ pañca
havirbhāgāḥ atha ye ṣaṭ prājāpatyā iḍā ca prāśitrañca yaccāgnīdhrāyāvadyati, brahmabhāgo yajamānabhāgo'nvāhāryya eva ṣaṣṭho'tha
ya upariṣṭāddaśavājyabhāgāstrayo'nuyājāścatvāraḥ patnīsaṃyājāḥ
samiṣṭayajuraṣṭamamatha yā gāyatrī hariṇī jyotiṣmattā sarvairyejñairyajamānaṃ svargaṃ lokamabhivahati, vedireva sā, tasya ye purastādaṣṭāvājyabhāgāḥ sa dakṣiṇaḥ paco'tha ye upariṣṭādaṣṭāvājyabhāgāḥ
sa uttaraḥ pacaḥ, havaṣiātmā, gārhapatyo jaghanamāhavanīyaḥ śiraḥ,
sovarṇarājatau pacau, tadyadādityaṃ purastāt paryyantaṃ na paśyanti
tasmādjyotiṣka uttaro bhavati | atha yā paṅktiḥ pañcapadā saptadaśākṣarā sarvairyajñairyajamānaṃ svargaṃ lokamabhivahati yājyeva
sā, tasyā o śrāvayeti caturakṣaram, astu śrauṣaditi caturakṣaraṃ,
yajeti dyakṣaraṃ, yeyajāmaha dūti pañcākṣaraṃ, dyakṣaro vai vaṣaṭkāraḥ,
saiṣā paṅktiḥ pañcapadā saptadaśākṣarā sarvairyajñairyajamānaṃ sargaṃ lokamabhivahati, tadyatrāsyaiśvaryyaṃ syādyanna vainamabhivaheyurevaṃvidmeva tatra
brahmāṇaṃ vṛṇīyānnānevaṃvidamiti brāhmaṇam