大乘義章 1.22

1.22

言就行者，行別有三，謂戒、定、慧。詮定之教名修多羅，詮戒之教名曰毘尼，詮慧之教名阿毘曇。三藏之中皆明三學，何故如是別配三行？《毘婆沙》中釋有兩義：一以義分。隨彼一切聖教之中，詮定之義斯皆攝之為修多羅，詮戒之義以為毘尼，詮慧之義判為毘曇。第二隱顯互相助成。修多羅中雖明戒慧，助成定行；毘尼藏中雖明定慧，助成戒行；毘曇藏中雖明戒定，助成慧行。以隱顯相從，故為此判。分相雖然，義猶難解。何故如是？以修多羅直彰法體令心正住，生定義強，故名詮定。阿毘曇者，廣開法義令心照知，生智義強，故名詮慧。毘尼詮戒，義在可知。

Regarding reference to practice: practice has three divisions, namely, moral discipline, samādhi, and prajñā. The teaching that explains samādhi is called sūtra; the teaching that explains moral discipline is called vinaya; the teaching that explains prajñā is called abhidharma. Since all three trainings are clarified in each of the three baskets, why are they specifically matched with the three practices in this way? In the Vibhāṣā, two explanations are given: First, division by meaning. Within all the sacred teachings, any meaning that explains samādhi is subsumed under sūtra; any meaning that explains moral discipline is taken as vinaya; any meaning that explains prajñā is judged to be abhidharma. Second, implicit and explicit mutually assist and complete each other. Although moral discipline and prajñā are clarified in the sūtras, they assist in completing the practice of samādhi; although samādhi and prajñā are clarified in the vinaya basket, they assist in completing the practice of moral discipline; although moral discipline and samādhi are clarified in the abhidharma basket, they assist in completing the practice of prajñā. Based on conforming to the explicit over the implicit, this determination is made. Although their distinguished characteristics are thus, the meaning is still difficult to understand. Why is this so? Because the sūtras directly reveal the essence of dharmas so that the mind dwells correctly, the meaning of generating samādhi is strong, and hence they are said to explain samādhi. The abhidharma broadly opens up the meaning of dharmas so that the mind illuminates and understands, and the meaning of generating wisdom is strong, hence it is said to explain prajñā. That the vinaya explains moral discipline is understandable in principle.