仁王經疏 2.170

2.170

二慈氏菩薩宗，種性菩薩亦有退入惡趣、墮入外凡。如前所引《本業經》第一卷云「信想心中行者，是分善根諸善男子，若一劫二劫乃至十劫修行十信，得入十住。是人爾時從初一住至第六住中，若修第六般若波羅蜜，上觀現在前，後值諸佛菩薩知識所護故，出到第七住常住不退，自此七住以前名為退分。佛子！若不退者，入第六般若，修行於空無我主者，畢竟無生，必入定位。佛子，若不值善知識者，若一劫二劫乃至十劫，退菩薩心。如我初會眾中有八萬人退；如淨目天子、法才王、舍利弗等欲入第七住，其中值惡因緣故，退入凡夫不善惡中，不名習種性人退入外道。若一劫若十劫乃至千劫，作大邪見及五逆，無惡不造，是為退相。」准此等文，亦有退者。而《樂莊嚴》等說不退者，如《本業經》修第六度，遇善知識。故知種性有退不退。

Second, according to the school of Maitreya Bodhisattva, dispositional bodhisattvas can also retrogress into the miserable destinies and fall into the rank of external worldlings. As cited earlier, the first fascicle of the Benye jing states: "Practitioners in the mind of faith and conceptualization are good sons of this share of wholesome roots; if they practice the ten faiths for one kalpa, two kalpas, or up to ten kalpas, they attain entry into the ten abidings. At that time, if this person, from the first abiding through the sixth abiding, practices the sixth, the prajñāpāramitā, higher contemplation becomes manifest before them, and later, because they are protected by the good friends among buddhas and bodhisattvas, they step forth to reach the seventh abiding, where they permanently abide and do not retrogress. Prior to this seventh abiding, it is named the share of retrogression. Sons of the Buddha! If one does not retrogress, enters the sixth [pāramitā of] prajñā, and cultivates the non-self and non-master of emptiness, then, being ultimately unarisen, one will surely enter the determined rank. Sons of the Buddha, if one does not encounter good friends, then in one kalpa, two kalpas, or up to ten kalpas, one will retrogress from the bodhisattva-mind. Just as in the assembly of my first gathering there were eighty thousand people who retrogressed; and just as the divine son Śuddhanetra, King Dharmadhana, Śāriputra, and others were about to enter the seventh abiding, but because they met bad conditions in the interim, retrogressed into the unwholesome evils of worldlings, and not being named persons of the habit-disposition, retrogressed into non-Buddhist teachings. For one kalpa, ten kalpas, or up to a thousand kalpas, they adopted great wrong views and the five heinous crimes, leaving no evil uncommitted—this is the mark of retrogression." According to such passages, there are indeed those who retrogress. And when texts such as the Joyous Adornment Sūtra say they do not retrogress, this refers to those who, as in the Benye jing, practice the sixth pāramitā and encounter good friends. Thus we know that among the dispositional lineage, there are both retrogression and non-retrogression.