注維摩詰經 3.329

3.329

什曰：非肉身即法化身也。非三界之形，故過於三界。雖有生滅，而無老病眾惱十事之患，故名無漏。無漏則體絕眾為，故名無為。形超五道非物之數，故曰無數也。肇曰：三界有待之形，名思欲身也。法身之義已記之善權。生曰：以向來語，當知必如下說也。思欲是妄想之懷，致病本也。如來身從實理中來，起不由彼，應有何病耶？

[Kumāra]jīva says: "It is not a flesh body, but a dharma-transformation body. Because it is not a form of the three realms, it transcends the three realms. Although it displays arising and ceasing, it is free from the afflictions of the ten troubles, such as aging and sickness, and is therefore called undefiled (anāsrava). Being undefiled, its substance is free from conditioned activities, and is therefore called unconditioned (asaṃskṛta). Its form transcends the five destinies and does not fall into the enumeration of things, hence it is said to be uncounted." [Seng]zhao says: "The conditioned forms of the three realms are called bodies of thinking and desire. The meaning of the dharmakāya has already been noted under 'Expedient Means'." [Dao]sheng says: "Based on the preceding words, one should know that it must be as explained below. Thinking and desire are states of mind of false imagination, which are the root cause of illness. The Tathāgata's body comes forth from the true principle; its arising does not stem from that [thinking and desire], so what illness could it have?"