JB, 1, 68, 4.0 sa śīrṣata eva mukhatas trivṛtaṃ stomam asṛjata gāyatrīṃ chando rathantaraṃ sāmāgniṃ devatāṃ brāhmaṇaṃ manuṣyam ajaṃ paśum //