瑜伽師地論略纂 12.42

12.42

論解五種願等中，第二、受生所云「隨順饒益有情諸善趣中」者，問曰：何以此中不言隨順生惡趣中？義曰：有二意：一、謂善趣利多，惡趣利少，略不論也；二、順八相唯在善趣故。又惡趣無自在，為王等化故。又說善趣時，意顯生惡趣，從勝處說，唯論善趣。

Where the śāstra explains the five kinds of vows and says regarding the second, rebirth: "in accord with benefiting sentient beings in the good destinies," it is asked: Why does it not speak here of rebirth in the bad destinies in accord [with benefiting sentient beings]? The commentary explains: There are two meanings. First, the good destinies have many benefits, while the bad destinies have few benefits, so they are omitted and not discussed. Second, it accords with the eight aspects [of a Buddha's life], which exist only in the good destinies. Furthermore, in the bad destinies there is no mastery to transform [others] as a king and so forth. Moreover, when speaking of the good destinies, the intention implies rebirth in the bad destinies as well; speaking from the superior state, it discusses only the good destinies.