成唯識論演祕 1.467

1.467

龜毛等法雖不可說以之為我，可說非我。量云：不可說非我者，此一分宗；龜毛喻而不得轉故；闕喻也。

Although things like turtle hair cannot be said to be the self, they can be said to be non-self. The syllogism runs: What cannot be said to be non-self is one part of the thesis; the example of turtle hair cannot apply; hence it lacks an example.