Śatapatha Brāhmaṇa ("of a hundred paths") 7.4.1.14

7.4.1.14

brahma jajñānam prathamam purastāditi | asau vā ādityo brahmāharahaḥ purastājjāyate vi sīmataḥ suruco vena āvariti madhyaṃ vai sīmeme lokāḥ suruco 'sāvādityo veno yadvai prajijaniṣamāṇo 'venattasmādvenastāneṣa sīmato madhyato vivṛṣvannudeti sa budhnyā upamā asya viṣṭhā iti diśo vā asya budhnyā upamā viṣṭhāstā hyeṣa upavitiṣṭhate sataśca yonimasataśca vivaritīme vai lokāḥ sataśca yonirasataśca yacca hyasti yacca na tadebhya eva lokebhyo jāyate triṣṭubhopadadhāti traiṣṭabho hyeṣa sādayitvā sūdadohasādhivadati tasyokto bandhuḥ

[He puts it down, with Vâg. S. XIII, 3] 'The Brahman first born in front;' the Brahman doubtless is yonder sun, and he is born day by day in front (in the east);--'from the summit he, the longing, overspread the shining,' the summit doubtless is the middle, the shining ones are these worlds, and the longing one is yonder sun,--he is the longing one inasmuch as he longed to be born; and in rising he overspreads these (worlds) from the summit, from the middle;--'he (overspread) the nighest extents of the deep,' his nighest extents of the deep doubtless are the regions, for he (the sun) does extend nigh to them;--'the womb of the existent and of the non-existent did he overspread!' the womb of the existent and of the non-existent doubtless are these worlds; for both what exists and what does not exist is born from these worlds. He puts it on with a trishtubh verse, for yonder (sun) is related to the Trishtubh. Having 'settled' it, he pronounces the Sûdadohas verse upon it: the significance of this has been explained.