Śatapatha Brāhmaṇa ("of a hundred paths") 1.1.2.2

1.1.2.2

atha vācaṃ yacati | vāgvai yajño 'vikṣubdho yajñaṃ tanavā ityatha pratapati pratyuṣṭaṃ rakṣaḥ pratyuṣṭā arātayo niṣṭaptaṃ rakṣo niṣṭaptā arātaya iti vā

He then restrains his speech; for (restrained) speech means undisturbed sacrifice; so that (in so doing) he thinks: 'May I accomplish the sacrifice!' He now heats (the two objects on the Gârhapatya), with the formula (Vâg. S. I, 7 a): 'Scorched is the Rakshas, scorched are the enemies!' or (Vâg. S. I, 7 b): 'Burnt out is the Rakshas, burnt out are the enemies!'