Rigvedabrahmana 8.9

8.9

gāyatryāvāgneyyau gāyatro 'yaṃ lokastadimaṃ lokamāpnoti triṣṭubhau saumyau traiṣṭubho 'ntarikṣalokastadantarikṣalokamāpnoti jagatyau
vaiṣṇavyau jāgato 'sau lokastadamuṃ lokamāpnoti tā vai viparyasyati
yāḥ pūrvāhne puronuvākyāstā aparāhne yājyāḥ karoti yā yājyāstāḥ
puronuvākyā ayātayāmatāyai vaṣaṭkāreṇa ha vā ṛgyātayāmā bhavati
samāne 'hnyayātayāmābhirme vaṣaṭkṛtamasaditi yadveva viparyasyati grīvāṇāṃ sthemne tasmādvāsāṃ grīvāṇāṃ vyatiṣaktānīva parvāṇi bhavantyājyahaviṣo devatāḥ payovrato yajamānastatsaloma tāḥ parovarīyasīrabhyupeyāttrīnagre stānānatha dvāvathaikaṃ parastara eva tallokānvarīyasaḥ kurute
nābhyunnayeta svargaṃ ha vā ete lokamabhiprayanti ya upasada upayanti
dvādaśo ha vā antaruṣyāḥ² svargo lokaḥ sa yaḥ sakṛdabhyunnayate yathaikarātraṃ sārthānpreṣitānanupreyādevaṃ tadyo dvitīyaṃ yathā dvirātramevaṃ taddhīyate tṛtīyena svargāllokāntvaśnute 'pyanugacchediti ha smāha paiṅgyo
na tvevābhyunnayeta yatraiva kāmayeta tatpūrvī gatvā svargasya lokasyāvasthediti samāptiḥ śreyasīti ha smāha kauṣītakiḥ samrājo 'smai bhakṣe
dadhyānayeyurna vrate somo vai dadhyanantarhito hāsya bhakṣo bhavati samāpnotyu te yadi saṃkrīṇīyuryā madhyamopasattayā dvyahamanyatare careyurāvapanaṃ hi sedama³ntarikṣaloka āyatanenāthāsabharamabhyudaityathāsabharamabhyudaiti