Śatapatha Brāhmaṇa ("of a hundred paths") 4.5.7.1

4.5.7.1

tā vā etāḥ | catustriṃśadvyāhṛtayo bhavanti prāyaścittayo nāmaiṣa vai prajāpatirya eṣa yajñastāyate yasmādimāḥ prajāḥ prajātā etamvevāpyetarhyanu prajāyante

Now, there are here thirty-four utterances, called expiations. Pragâpati, forsooth, is that sacrifice which is performed here, and from which these creatures have been produced,--and in like manner are they produced therefrom even to this day.