nityatvaṃ vasturūpam ityādi / nityatvaṃ vasturūpaṃ yat tadasādhayatām api / svayaṃ bhavati tat siddhiḥ pūrvapakṣadvaye hate
That eternality which is of the nature of reality becomes established by itself even for those who do not [explicitly] prove it, when the two prima facie views have been refuted.