nanu viśeṣanirdeśamantareṇa katham asau labhyata ity āha anirdiṣṭaviśeṣo 'pītyādi /
[One might ask:] "Without specifying particulars, how can this [conclusion] be reached?" [To this, the author] says "anirdiṣṭaviśeṣo 'pi..."