Madhvaon Brahma Sūtra 1.1.18

Indeed a syllogism may be framed (with whatever premises) we like. Therefore in establishing what is true, absolute reasoning is not to be sought. This is also said in the Skanda. “As the syllogism may be whimsical, only such reasoning as may not be at variance with Sruti is to be admitted for the consistent 'understanding of the foregoing and subsequent passages, but otherwise in no case is it (useful). Accordingly the Sruti says : ‘ This conviction (faith) can neither be brought nor taken away by reasoning,’