Śatapatha Brāhmaṇa ("of a hundred paths") 2.5.3.3

2.5.3.3

atha marudbhyaḥ sāṃtapanebhyaḥ | madhyandine caruṃ nirvapati maruto ha vai sāṃtapanā madyandine vṛtraṃ saṃtepuḥ sa saṃtapto 'nanneva prāṇanparidīrṇaḥ śiśye tatho evaitasya pāpmānaṃ dviṣantam bhrātṛvyam marutaḥ sāṃtapanāḥ saṃtapanti tasmānmarudbhyaḥ sāṃtapanebhyaḥ

Thereupon, at midday, he offers a potful of boiled grain (karu) to the Maruts, the Scorchers (Sântapanâh), for at midday indeed the scorching winds scorched Vritra; and thus scorched he lay panting and gasping, being rent all over. And so do the scorching winds scorch his (the Sacrificer's) wicked, spiteful enemy: hence (he sacrifices) to the Maruts, the Scorchers.