摩訶止觀 7.141

7.141

復次，前兩道品教門明因，得修相業；論果，得有相體。但此相小勝輪王，魔能化作，故非奇特；入無餘涅槃，相則永滅。譬如得銅，不能照面。

Furthermore, the doctrinal gates of the previous two kinds of the factors of the path explain the cause, whereby one can cultivate the karma of the marks; discussing the fruit, one can have the essence of the marks. However, these marks are only slightly superior to those of a wheel-turning king, and Māra can manifest them, so they are not extraordinary; when entering nirvāṇa without remainder, the marks are extinguished forever. This is like obtaining bronze, which cannot clearly reflect the face.