俱舍論疏 10.9

10.9

「論曰至非親友無」，舉喻顯也。就中有三：一舉親、非親喻；二舉實、非實喻；三舉等言等餘非法等喻。此即是初親、非親也。此非親友，唯取所對怨敵名非親友，非是體非親友，異親友故名非親友，不是親友無故名非親友。

The treatise states: "... not the non-existence of a friend." This presents analogies to illustrate. Within this there are three: first, giving the analogy of a friend and a non-friend; second, giving the analogy of the real and the unreal; third, using the word "and the rest" to encompass other analogies like unrighteousness and so forth. This is the first, friend and non-friend. Here, "non-friend" takes only an opposing enemy to be named "non-friend"; it is not that because its entity is not a friend, or different from a friend, that it is named non-friend, nor is it named non-friend because of the non-existence of a friend.