Madhvaon Brahma Sūtra 2.1.11
Dvaita Vedānta
Numbered 2.1.12 in this text
Sūtra
तर्काप्रतिष्ठानादप्यन्यथानुमेयमिति चेदेवमप्यनिर्मोक्षप्रसङ्गः
tarkāpratiṣṭhānādapyanyathānumeyamiti cedevamapyanirmokṣaprasaṅgaḥ
Sūtra translation
If it be said that as there is no limit to controversial reasoning, something to the contrary is always inferable, we say ‘no*; for then (it would appear) there would be no final release.
‘So far only reasoning goes and no farther.’ No such limit can be assigned to reasoning by any authority; con* sequently when one position is advanced, it is possible to make inferences to the contrary also. But this view cannot be held. For, if that should be the fact, the release which is a fact by settled authorities, the contrary being possibly inferred, would come to be no fact. Wherefore things are to be admitted only so far as they are known to be facts by authori- ties, and nothing further (nothing else should be surmis- ed). So it is said in the Vamana Purana, “ Whatever is settled to be by authorities, is to be accepted and not to be abandoned. For in the absence of authority (settled means of proof) it would be impossible to prove or disprove anything.