Madhvaon Brahma Sūtra 2.1.4

The fruit or the effect (promised by scripture) is realised by the eligible; and this is said in the Bhavisli- yat Puraua ; “ Rik, Yajus, Saman, and Atharva,the Mula Ratnayana, the Mahabharata, the Pancharatra, are called the Vedas in fact. And those Puranas which the wise understand to be Vaishnava Puranas, as well as those called Vedas (above) are self-evident authorities and this admits of no dispute.” If what is declared in them should not be realised by a person, then it is his previous Karma that should account for it (non-realisation), while they do not lose their authori- tativeness, as the promised effects (results) are achieved by persons according to their eligibility. But in the case of other Smritis, etc., authoritativeness arises (only) from the perception of the promised effect, but, by no means, independently; if these should promise things that cannot be seen (realised) in experience, then their erroneousness is settled beyond doubt. From such texts as, “The Earth spoke, Waters spoke ” (S. Br. VI. 3), Scripture appears to be contrary to reason; So the Sutrakara says: