Śatapatha Brāhmaṇa ("of a hundred paths") 1.8.3.3

1.8.3.3

athāmāvāsyāyām | indrāgnyorujjitimanūjjeṣaṃ vājasya mā prasavena prohāmīndrāgnī tamapanudatāṃ yo 'smāndveṣṭi yaṃ ca vayaṃ dviṣmo vājasyainam prasavenāpohāmīti yadi svayaṃ yajamānaḥ

At the new-moon sacrifice, on the other hand, he uses the texts (ib. c, d), 'May I be victorious after the victory of Indra and Agni! with the impetus of the food I urge myself on;' and, 'May Indra and Agni drive him away who hates us, and whom we hate! with the impetus of the food I drive him away:'--Thus, if the sacrificer himself does it.