pramāṇābhāvamātrasya hi vastubhāvābhāvayor api pradarśanād avyavasthitatvamataḥ sadasattāniścayānutpatter evaṃ saṃśayo varṇyate /
Since mere absence of valid means of knowledge can be shown regarding both existence and non-existence of things, [and] due to this non-definitiveness, there is no arising of certainty about existence or non-existence, thus doubt is explained.