saṃsargiṇo 'pi hyādhārā yaṃ na bhindanti rūpataḥ / apohyai{rbahiraṅgais sa bhidyetetya}tikalpanā //
When even the substrata [i.e. the cows] to which [the apohas] are related do not differentiate their form, [the idea] that they would be differentiated by excluded things which are external [to them] would be an over-reaching assumption.