妙法蓮華經玄義 3.68

3.68

次、二十智照一實諦者，此須引《釋論》明四悉檀，皆名為實。世界故實，乃至第一義故實。當知實語亦通四諦，生滅故實，無生滅故實，無量故實，無作故實。前、三藏七智照生滅之實。次、通教五智照無生滅之實。次、別教四智照無量之實。次、圓教四智照無作之實。前後諸實（云云）。

Next, as for the twenty wisdoms illuminating the one real truth: here we must cite the Mahāprajñāpāramitopadeśa, which clarifies that the four siddhāntas are all called "real": real due to worldly convention, up to real due to the paramārtha. One should know that the term "real" also applies across the four truths: real due to arising and perishing, real due to non-arising and non-perishing, real due to the immeasurable, and real due to the uncreated. The first seven wisdoms of the tripiṭaka illuminate the real of arising and perishing. The next five wisdoms of the shared teaching illuminate the real of non-arising and non-perishing. The next four wisdoms of the distinctive teaching illuminate the real of the immeasurable. The next four wisdoms of the perfect teaching illuminate the real of the uncreated. The various instances of the "real" preceding and following are as explained above.