atra ca jñānavaśād arthanirdeśo notpādakavadbhūtārthavaśād ity āha ataḥ kāraka evāyaṃ jñāpako hetur ucyate /
Here, the designation [of the reason] is based on cognition, not on actual production like a productive [cause], therefore this indicative reason (jñāpaka-hetu) is called "productive" (kāraka).