Śatapatha Brāhmaṇa ("of a hundred paths") 13.3.2.1

13.3.2.1

parameṇa vā eṣa stomena jitvā catuṣṭomena kṛtenāyānāmuttare'hannekaviṃśe pratiṣṭhāyām pratitiṣṭhatyekaviṃśātpratiṣṭhāyā uttaramaharṛtūnanvārohatyṛtavo vai pṛṣṭhānyṛtavaḥ saṃvatsara ṛtuṣveva saṃvatsare pratitiṣṭhati

Now this (Sacrificer), having- conquered by means of the supreme Stoma--the Katushtoma, the Krita among dice,--on the next day establishes himself on the Ekavimsa, as a firm foundation: from the Ekavimsa, as a firm foundation, he subsequently ascends to the next day, the seasons; for the Prishtha (-stotras) are the seasons, and the seasons are the year: it is in the seasons, in the year, he establishes himself.