妙法蓮華經玄贊 8.150

8.150

贊曰：此中有七。一能說，二得通，三具無礙解，四識根，五說淨法，六為大益，七淨佛土。

The Eulogy says: Herein there are seven [aspects]: first, ability to preach; second, obtaining supernormal faculties; third, being fully endowed with unimpeded understanding; fourth, discerning faculties; fifth, expounding pure Dharma; sixth, rendering great benefit; seventh, purifying the buddha-field.