prayogaḥ yā buddhir yadvijñānāntaramudbhāvitā sa tatsamutthitā pāramparyeṇa, yathā dhūmādiliṅgajñānād vahnyādiliṅgidhīḥ /
The formulation [is as follows]: Whatever cognition appears after another cognition must be regarded as arising from that [previous cognition] in succession, just as the cognition of the indicated thing (fire) [arises] from the cognition of the indicator (smoke).