摩訶止觀 1.93

1.93

「推無量」者：夫法性者名為實相，尚非二乘境界，況復凡夫？出二邊表，別有淨法，如《佛藏經》十喻（云云）。是名「推無量四諦上求下化發菩提心」。

"Investigating the immeasurable": the dharmatā is called true reality; it is not even the realm of the two vehicles, how much less of ordinary beings? Transcending the exterior of the two extremes, there is separately a pure dharma, like the ten similes in the Fo zang jing, and so forth. This is called "giving rise to the bodhicitta by investigating the four truths of the immeasurable to seek above and transform below."