維摩經略疏垂裕記 1.88

1.88

二、「當知」下，隨機說。「有悉檀赴機」等者，謂欲令歡喜生善破惡悟道，故作自他淨穢等說。悉之言遍。檀翻為施。以此四法遍施眾生，名四悉檀，委如《玄義》。

Second, from "One should know" onward, preaching according to capacity. "There are the siddhāntas that respond to capacities" and so forth means: intending to make them rejoice, generate good, break evil, and awaken to the Path, he therefore made statements concerning self and other, purity and defilement, and so forth. Xi means "pervasive." Tan is translated as "giving" (dāna). Universally bestowing these four dharmas upon sentient beings is called the four siddhāntas, detailed as in the Profound Meaning.