Śatapatha Brāhmaṇa ("of a hundred paths") 6.1.2.24

6.1.2.24

taddha smāhāktākṣyaḥ | ya eva yajuṣmatīrbhūvasīriṣṭakā vidyātso 'gniṃ cinuyādbhūya eva tatpitaram prajāpatim bhiṣajyatīti

Here now Âktâkshya used to say, 'Only he who knows abundant bricks possessed of (special) prayers, should build up the fire (altar): abundantly indeed he then heals Father Pragâpati.'