Śatapatha Brāhmaṇa ("of a hundred paths") 10.2.4.5

10.2.4.5

yadvevaikaśatavidhaḥ saptavidhamabhisampadyata ekaśatadhā vā asāvādityo vihitaḥ saptasvṛtuṣu saptasu stomeṣu saptasu pṛṣṭheṣu saptasu candaḥsu saptasu prāṇeṣu saptasu dikṣu pratiṣṭhitastathaivaitadyajamāna ekaśatadhātmānaṃ vidhāyaitasmintsarvasminpratitiṣṭhati

And, again, as to how the one hundred and one-fold (altar) passes into the sevenfold one:--yonder sun, composed of a hundred and one parts, is established in the seven seasons, in the seven stomas (hymn-forms), in the seven prishtha (-sâmans), in the seven metres, in the seven vital airs, and in the seven regions; and in like manner does the Sacrificer now establish himself in this universe (or, on everything here) by constructing for himself a body one hundred and one-fold.