仁王般若經疏 2.31

2.31

For the fifth ground, the four are: first, from "if a bodhisattva abides in a hundred billion" onward, clarifying the land to be transformed. Second, from "acts as the king of Nirmāṇarati Heaven" onward, clarifying the characteristics of superior rebirth. Thus the Daśabhūmika-sūtra has acting as the king of Tuṣita Heaven, while the Yingluo jing also agrees with this sūtra in being the king of Nirmāṇarati Heaven. Third, from "cultivates a hundred billion dharma-gates" onward, clarifying the understood dharma-gates. Fourth, from "two truths" onward, clarifying the characteristics of practice to benefit others: the two truths of ultimate and conventional. Moreover, there are the constructed four truths and unconstructed four truths making eight truths. It is also possible that cultivating eight dharmas constitutes eight truths, namely impermanence, suffering, emptiness, and non-self as four, and permanence, bliss, self, and purity as four, thus making eight. It is also said that the eight truths are: the truth of marks, the truth of distinction, the truth of explanation, the truth of establishment, the truth of activity, the truth of arising, the truth of knowledge of exhaustion and non-arising, and the truth of knowledge causing entry into the path and the bodhisattva's fulfillment of the Tathāgata's knowledge. Awakening to the continuity of conditioned phenomena, one therefore skillfully knows the truth of arising. Awakening to the cessation of afflictions, one therefore skillfully knows the truth of exhaustion and non-arising. These eight names are similar to eight of the names among the sixteen truths in the Yingluo jing; their precise source is not yet clear.