肇論新疏 3.260

3.260

三乘云殊，免患是同。所乘下，通理教行果，今略就教行釋之。教者，謂依一乘分別說三，即諦、緣、度。行者，三乘三行大小不一。統其下，意謂能乘之人，隨所乘之法不一而有三名，所歸之理唯一無二。

Although the three vehicles are said to be distinct, their escape from affliction is identical. The phrase "what is ridden" onwards applies to principle, teaching, practice, and fruition; here it is explained briefly in terms of teaching and practice. Teaching refers to distinguishing and teaching three based on the one vehicle—namely, the truths, conditions, and perfections. Practice refers to the three practices of the three vehicles being unequal, great and small. The phrase "integrating them" onwards means that the persons able to ride are given three designations according to the differences in the Dharma ridden, while the principle to which they return is one without a second.