維摩經略疏垂裕記 5.161

5.161

二、「鐵輪」下，結顯分真。荊溪云：鐵輪者，用判下文。下去五根，語別位同，所以引銅輪為證，得至初住方有一分如盲故也。

Second, from "Iron wheel..." below, concluding to reveal partial reality. Jingxi says: "The 'iron wheel' is used to judge the text below. For the five faculties further below, the words differ but the stages are the same; this is why the copper wheel is cited as evidence, because it is only upon reaching the first abode that one possesses a partial degree of being like the blind."