妙法蓮華經玄贊 8.116

8.116

贊曰：此有三德。一具神通，法雲地中大事業故；二修梵行，常持菩薩三聚戒故；三隱行大利，以小乘法利益眾生。

The Eulogy states: Here there are three virtues: (1) being endowed with supernatural powers, because of the great deeds in the Dharma-cloud ground; (2) cultivating pure conduct (brahmacarya), because he constantly maintains the bodhisattva’s three clusters of precepts; (3) concealing his practice to bring great benefit, benefiting sentient beings through the small-vehicle Dharma.