摩訶止觀 3.132

3.132

二、明智離合者，諸經或說一智，二三四乃至十一智等。若說三智，可用觀三諦；如其增、減，當云何觀？

Second, clarifying the separation and combination of wisdom: various sutras speak of one wisdom, two, three, four, up to eleven wisdoms, and so forth. If three wisdoms are taught, they can be used to contemplate the three truths; if they are increased or decreased, how should one contemplate?