俱舍論頌疏論本 27.87

27.87

後真二假說者，此三明中，後漏盡明容有是真，通無漏故。前二名明但是假說，以有漏故。

Regarding "the latter is real, while two are figurative designations": among these three knowledges, the latter knowledge of the destruction of the outflows may truly be [a knowledge], because it is uncontaminated. The first two are called "knowledges" merely as figurative designations, because they are contaminated.