Śatapatha Brāhmaṇa ("of a hundred paths") 6.1.3.8

6.1.3.8

tadyāni tāni bhūtāni | ṛtavaste 'tha yaḥ sa bhūtānām patiḥ saṃvatsaraḥ so 'tha yā soṣāḥ patnyauṣasī sā tānīmāni bhūtāni ca bhūtānāṃ ca patiḥ saṃvatsara uṣasi reto 'siñcantsa saṃvatsare kumāro 'jāyata so 'rodīt

Now, those beings are the seasons; and that lord of beings is the year; and that Ushas, the mistress, is the Dawn. And these same creatures, as well as the lord of beings, the year, laid seed into Ushas. There a boy (kumâra) was born in a year: he cried.