Nyāya Sūtras 65.3

65.3

yāṃ ca vipratipattiṃ bhavān saṃśayahetuḥ manyate sā sampratipattiḥ, sā hi dvayoḥ pratyanīkadharmaviṣayā/ tatra yadi vipratipatteḥ saṃśayaḥ, sampratipatter eva saṃśaya iti//

And the conflicting opinion which you consider to be the cause of doubt is a consensus, for it pertains to two opposing properties. In that case, if doubt arises from conflicting opinion, doubt arises from consensus alone.