prayogaḥ yo yadvyāpāre sati bhavati sa tat kāryavyavahārādiyogyaḥ, yathābījādivyāpāre sati bhavannaṅkurādis tatkāryaḥ, adhyetṛvyāpāre sati bhavatyupalabhyasvabhāvo veda iti svabhāvahetuḥ
The syllogistic formulation is: Whatever exists when there is the operation of something, that is fit to be treated as its effect and so forth - just as a sprout etc. existing when there is the operation of a seed etc. is its effect - [and] the Veda has the nature of being perceived when there is the operation of a reciter; thus [this is] a natural reason