yat pūrvāparayoḥ koṭyoḥ paraiḥ sādhanam ucyate / tannirākaraṇaṃ kṛtvā kṛtārthā vedavādinaḥ //
When proofs are stated by others regarding the two extremes [i.e., beginning and end], the upholders of the Veda accomplish their purpose by refuting those [proofs].