yadyanupalambhamātraṃ hetutvenopādīyate tadānaikāntikatā / yato mānābhāvena pramāṇābhāvamātreṇa hetunā naivārthasattāyā abhāvaniścayaḥ //
If mere non-apprehension is put forward as a reason [for non-existence], then [that reason] is inconclusive, because through mere absence of means [of cognition], i.e., through mere absence of valid cognition as a reason, there can never be certainty of the non-existence of a thing.