法華玄論 2.15

2.15

Third, explaining the three virtues. The first section of the sūtra clarifies the two kinds of wisdom, provisional and real, which is prajñā; the latter section explains the origin and the trace, which is dharmakāya; these two are free from encumbrance, which is called liberation. Therefore, this sūtra is fully endowed with these three virtues, and is thus called permanent.