nacāyam asiddho hetur mantavya ityādarśayann āha icchetyādi / pūrvaṃ ca vistareṇa bhāvanāsambhavasya pratipāditatvād iti nāsiddho hetuḥ
This reason should not be considered unestablished, as [the text] shows by saying "icchā" etc., and since the possibility of conception was extensively proven before, therefore the reason is not unestablished