華嚴一乘教義分齊章 3.7

3.7

問：「何故此中不說變易？」答：「如世界性等，以上身分甚極微細，出過諸天，應同變易。但以此教不分生死麁細之相，總就過患以為一際。至信滿後頓翻彼際，故不說也。餘準而知之。」

Question: "Why is the transformation [body] not taught here?"
Answer: "Just as with the world-nature and so forth, the higher bodily forms are extremely subtle and transcend the devas, so they would be equivalent to transformation [bodies]. However, because this teaching does not differentiate the coarse and subtle marks of birth-and-death, it universally regards all faults as a single limit. After faith is perfected, that limit is suddenly overturned, and therefore it is not taught. The rest can be understood accordingly."