成唯識論述記 8.416

8.416

述曰：此第二問辭也。若由遍故，老得立支；病不遍故，不立支者，名色不遍，何故立支？謂色界全，欲界化生，六處頓起，云何有名色？即是不遍，何故立支？

The Commentary states: This is the second question. If aging can be established as a factor because it is pervasive, while sickness is not established as a factor because it is not pervasive, then name-and-form is not pervasive; why is it established as a factor? That is, in the form realm entirely, and for apparitional birth in the desire realm, the six sense bases arise simultaneously; how could there be name-and-form? Since it is not pervasive, why is it established as a factor?