金光明最勝王經疏 3.23

3.23

Commentary: Explaining permanence. Because the realm of sentient beings is unending, its manifested lifespan is unending; hence it is spoken of as permanent. This refers to permanence through conditions: there is permanence spoken of as conforming to conditions. Asabhāva's Commentary on the Mahāyānasaṃgraha says: 'Since the Buddha's saṃbhogakāya and nirmāṇakāya are impermanent, why do the sūtras say that the Tathāgata's body is permanent?' This asks about their permanence because the dharmakāya on which these two rely is permanent. Furthermore, with respect to the niṣyandakāya and nirmāṇakāya, because of constant enjoyment, without cessation or final severance, Asabhāva explains: 'Although these two bodies are impermanent, yet they rely on the permanence of the dharmakāya, and because the dharmakāya is permanent they are also spoken of as permanent. When speaking of the permanence of the body, either its essence is permanent, or it is called permanent because of relying on a permanent body; this is permanence by alternative designation, not permanence by intrinsic nature.' It goes on to say: 'Just as in the world people speak of