大乘義章 7.49

7.49

次就形趣分別其相。趣謂五趣，五趣之中唯人成就，餘趣之中但有業道，無惡律儀。故《成實》言「但人成就。」毘曇亦爾。問曰：《成實》宣說龍等得善律儀，何故不得惡律儀乎？以善律儀從師而受，以緣強故，所以得之；惡不如是，所以不得。趣別如是。形別如何？依如《毘曇》，男女二形得惡律儀，餘皆不得。成實法中，不能男等亦皆得之。不善律儀，略之云爾。

Next, their characteristics are distinguished with respect to physical forms and destinies. 'Destinies' refers to the five destinies; among the five destinies, only humans possess it; among the remaining destinies, there are only courses of action (karmapatha), but no unwholesome restraint. Thus the *Tattvasiddhi* says: 'Only humans possess it.' The Abhidharma is also like this. Question: The *Tattvasiddhi* explains that dragons (nāgas) and so forth acquire the wholesome restraint; why do they not acquire the unwholesome restraint? Because the wholesome restraint is received from a teacher, it is acquired due to the strength of conditions; evil is not like this, so it is not acquired. Such are the distinctions among destinies. What about the distinctions among physical forms? According to the Abhidharma, those of the male and female forms acquire the unwholesome restraint, while the rest do not. In the system of the Tattvasiddhi, the impotent and so forth all also acquire it. A brief account of the unwholesome restraint is as stated.