atha pratyakṣeṇādhigate satyuttarakālaṃ taiḥ punar adhigamaḥ kriyate, ata āha vaiphalyaṃ vā /
If it is argued that "these [other means] produce cognition subsequently, after [the object] has been cognized by perception," to this [we] say that [this would lead to] futility.