維摩經略疏垂裕記 5.55

5.55

二、如來遣問，二：初、佛知心念。「智人知智」者，極果智人知分真智人。以蛇喻智，其旨可知。同類方見，餘莫能覩，此語出《大論》。

Second, the Tathāgata sends to inquire, in two parts: first, the Buddha knows his mental reflection. "A wise person knows wisdom": a wise person of the ultimate fruition knows a wise person of partial reality. Using a snake to illustrate wisdom, its meaning can be known. Only those of the same kind can see it, and others cannot behold it; this saying comes from the Dàzhìdù lùn.