Śatapatha Brāhmaṇa ("of a hundred paths") 6.2.2.31

6.2.2.31

tadāhuḥ | kathamasyaitatkarma saṃvatsaramagnimāpnoti kathaṃ saṃvatsareṇāgninā sampadyata ityeteṣāṃ vai pañcānām paśūnāṃ caturviṃśatiḥ sāmidhenyo dvādaśāpriyastatṣaṭtriṃśadekādaśānuyājā ekādaśopayajastadaṣṭā pañcāśat

Here now they say, 'How does that sacrificial performance of his (the animal sacrifice) gain the year, Agni? how does it correspond with the year, with Agni?' Well, for those five victims there are twenty-five kindling-verses, twelve Âprî-verses,--that makes thirty-six;--eleven after-offerings, eleven by-offerings,--that makes fifty-eight.