法華玄論 2.19

2.19

答：般若是口密，法身是身密，如〈四相品〉說。前明智之權實，故是般若；後辨身之本迹，故宜明法身。解脫者，斯二無累即解脫也。

Answer: Prajñā is the secret of speech, and the dharmakāya is the secret of body, as explained in the "Chapter on the Four Marks." The former section clarifies the provisional and real nature of wisdom, and so it is prajñā; the latter section discerns the original and trace natures of the body, and so it is appropriate to clarify the dharmakāya. As for liberation, when these two are free of entanglements, that is liberation.