Madhvaon Brahma Sūtra 2.1.15

If there were means (materials) of independent existence, then they should have been cognised by the several means of knowledge. There is not a single thing that is not spoken of by the five Vedas ; (or such a thing would have to be granted while all means of its cognition are denied). And the Vedas are so called because they make known (to us) all things." (Skanda). From such texts as, “ The Purusha has been pro- duced with waters, earth, faculties, etc.” (T. A, iii. 13), it clearly appears there are materials for creation (with which the Lord works) ; then how could it be said that materials are not spoken of or found ? In reply, the Sutrakara says: