肇論新疏 3.292

3.292

承前法喻，以答異亦無三也。初二句喻明，後二句法說。前舉三鳥雖異免患是同，免則相即，不妨人異，以明一亦有三。此舉迯患雖同遠近有異，以明異亦有三，但異在遠近，不在於法。幽鑑，三乘之智也。

Building on the preceding Dharma and metaphor, this answers "if they are different there are also no three." The first two lines clarify with metaphor, the latter two explain in terms of the Dharma. The preceding brought up that although the three birds are distinct, their escape from affliction is identical: escaping means they are identical, which does not prevent the persons from being distinct—this clarifies that oneness also has three. This passage brings up that although fleeing affliction is identical, far and near differ—this clarifies that difference also has three, but the difference resides in far and near, not in the Dharma. "Subtle discernment" is the wisdom of the three vehicles.