Shatapatha Brahmana 8.4.2.11

8.4.2.11

yavānām bhāgo 'si | ayavānāmādhipatyamiti pūrvapakṣā vai yavā aparapakṣā ayavāste hīdaṃ sarvaṃ yuvate cāyuvate ca pūrvapakṣebhyo bhāgaṃ kṛtvāparapakṣebhya ādhipatyamakarotprajā spṛtāścatuścatvāriṃśa stoma iti sarvāḥ prajāścatuścatvāriṃśena stomena pāpmano mṛtyoraspṛṇot

'The Yavas’ share thou art, the Ayavas’ lordship!'--the Yavas, doubtless, are the first (light) fortnights, and the Ayavas the latter (dark) fortnights, for these gain (yu) and obtain (â-yu) everything here: having bestowed a share on the first fortnights, he bestowed lordship on the latter fortnights;--'the creatures are freed, the Katuskatvârimsa-stoma!'--by means of the forty-four-fold hymn-form he freed all creatures from evil, from death.