瑜伽論記 14.412

14.412

由幾因緣已下，次第廣釋。初釋根不壞，謂由二因由羸損等，如本地第二。又略由四緣，諸根變異等者，先好後惡先惡後好皆名變異。

From 'by how many causes and conditions' onward, it successively explains in detail. First, it explains that the faculties are unimpaired, meaning by two causes, by emaciation/deterioration, and so forth, as in the second [fascicle of the] Maulī [Bhūmiḥ]. Regarding 'Furthermore, in brief, through four conditions, the various faculties are transformed,' and so forth: good first and bad later, or bad first and good later, are all called 'transformation'.