Śatapatha Brāhmaṇa ("of a hundred paths") 3.5.2.1

3.5.2.1

idhyamabhyādadhati | upayamanīrupakalpayantyājyamadhiśrayati sruvaṃ ca srucaṃ sammārṣṭyathotpūyājyam pañcagṛhītaṃ gṛhṇīte yadā pradīpta idhmo bhavati

They put fire-wood on (the Âhavanîya fire), and prepare the underlayer (of gravel). He (the Adhvaryu) puts the butter on (the Gârhapatya to melt), and cleans both the dipping-spoon and the offering-spoon. Having then clarified the ghee, he ladles five times thereof (into the offering-spoon). When the fire-wood is ablaze-