瑜伽論記 20.85

20.85

初順釋意欲辨佛身一切。一切有為無漏出世間道，初起名生，生便相續流轉故名轉，真如與此有為功德作所依止故名所依。又解：自受用身相續是出世道生轉之所依止也。

First, the direct explanation intends to distinguish everything concerning the Buddha's body. For all conditioned, taintless supramundane paths, their initial arising is called 'arising,' and once arisen, their continuous stream is called 'continuation.' Because tathatā serves as the support for these conditioned merits, it is called the 'basis.' Another explanation says: The continuation of the body of self-enjoyment (svasaṃbhogakāya) is the basis for the arising and continuation of the supramundane path.