摩訶止觀 8.37

8.37

又觀煩惱而修道品：四分心起即污穢五陰；一陰無量陰，受、想、行、識亦復無量。諸陰即空，凡夫倒破，小枯樹成；諸陰即假，二乘倒破，大榮樹成；諸陰即中，廢枯榮教，二邊寂滅，入大涅槃。乃至開三解脫，入清涼池也。

Furthermore, contemplating afflictions, one cultivates the aids to the path: when the mind of the four components arises, it defiles the five aggregates; one aggregate comprises immeasurable aggregates, and sensation, conception, volition, and consciousness are also immeasurable. The aggregates being identical to emptiness, ordinary beings' inversions are shattered, and the small withered tree is accomplished; the aggregates being identical to the provisional, the two vehicles' inversions are shattered, and the great flourishing tree is accomplished; the aggregates being identical to the middle, setting aside the teachings of withered and flourishing, the two extremes are extinguished, and one enters great nirvāṇa. This extends to opening the three liberations and entering the cool pool.