Śatapatha Brāhmaṇa ("of a hundred paths") 10.2.6.13

10.2.6.13

evaṃ vāva sarve yajñāḥ ekaśatavidhā āgnihotrādṛgbhiryajurbhiḥ padairakṣaraiḥ karmabhiḥ sāmabhiḥ sa yaḥ śatāyutāyāṃ kāmo ya ekaśatavidhe yaḥ saptavidhe yajñena yajñena haiva tamevaṃvidāpnotītyu evādhiyajñam

In this way, indeed, all sacrifices up to the Agnihotra are a hundred and one-fold by way of verses, formulas, words, syllables, rites, and hymn-tunes; and whosoever knows this obtains by every sacrifice whatever wish there is either in a life of a hundred years, or in the one hundred and one-fold (altar), or in the sevenfold one. Thus much as to the sacrifice.