tathā hi pramāṇenāpi siddhe sati syād vibhramavyavasthā / yathā kṣaṇikatvasya pramāṇena siddhatvānnityatvagraho bhrānto vyavasthāpyate
For an error can only be established when [the contrary] has been proved by a valid means of knowledge, just as the notion of permanence is established as erroneous because momentariness has been proved by a valid means of knowledge.