अग्ने व्रतपते व्रतमुपायं तच्छकेयं तच्छिध्यसमदह्यतमिदमहमनृतात्सत्यमुपैमि
agne vratapate vratamupāyaṃ tacchakeyaṃ tacchidhyasamdahyatamidahamanṛtātsatyamupaimi
अनुवाद: O Agni, Lord of sacred vows, I have approached your vow. May I be capable of it, may I succeed in it. Now I pass from untruth to truth.
The sacrificer formally takes a sacred vow in front of Agni, invoking the inner divine flame to abandon falsehood and embrace absolute truth and righteousness.