ĀpŚS, 16, 14, 5.2 puraḥ kṛṇudhvam āyasīr adhṛṣṭā mā vaḥ susroccamaso dṛṃhatā tam iti śarkarā abhimantryāyaṃ so agnir iti catasro madhye prācīr iṣṭakā gārhapatyacitāv upadadhāti //