evaṃ tāvad atītānāgatānām asattāsādhakaṃ pramāṇam abhidhāya sattāsādhakaṃ pramāṇamapākartum āha hetava ityādi /
Having thus stated the proof establishing the non-existence of past and future [things], [the author] proceeds to refute the proof establishing [their] existence by saying "hetavaḥ" etc.