kiñca yadetan mantrādīnāṃ viṣāpanayanādisāmarthyamatyantaparokṣaṃ tadyadi buddhādibhiḥ sākṣān na viditaṃ tat kathaṃ tair bhāṣitam iti vaktavyam //
Moreover, if the power of mantras and other [means] to remove poison etc., which is entirely beyond perception, was not directly known to Buddha and others, how could they have spoken about it? This needs to be explained.