摩訶止觀 6.122

6.122

或九法為藥者，謂四見是污穢五陰，五陰變壞名「色變想」乃至九云云。

Or when nine dharmas serve as medicine: it means that the four views are the defiled five aggregates; the deterioration and decay of the five aggregates is called the 'concept of changing colour', and so on up to nine, and so forth.