Śatapatha Brāhmaṇa ("of a hundred paths") 7.3.2.6

7.3.2.6

tadvā etatkriyate | yaddevā akurvannidaṃ nu tāni rakṣāṃsi devairevopahatāni yattvetatkaroti yaddevā akurvaṃstatkaravāṇītyatho yadeva rakṣo yaḥ pāpmā tebhya etānagnīnetā iṣṭakā vajrānkṣurapavīnkṛtvā praharati tairenāntstṛṇute tāntstṛtvābhaye 'nāṣṭrā etaṃ yajñaṃ tanute

Now, what the gods did is done here,--even now those Rakshas are indeed smitten by the gods themselves; and when he nevertheless does this, it is because he thinks, 'I must do what the gods did.' And so, having made those fires, those bricks, to be sharp-edged thunderbolts, he hurls them at whatever Rakshas, whatever evildoers there may be, and lays them low thereby; and having laid them low, he spreads the sacrifice in a place free from danger and devilry.