淨名經集解關中疏 2.172

2.172

爾時文殊師利問維摩詰言。菩薩云何通達佛道　此初也。問。肇曰。諸佛之道以無得為得。其道虛玄非常行之所通。通之必有以。故問所以通。

At that time, Mañjuśrī asked Vimalakīrti: "How does a bodhisattva penetrate the Buddha path?" This is the first part: the question. Zhao says: "The path of the Buddhas takes non-attainment as attainment. Its path is empty and profound, not something penetrated by ordinary practice. Penetrating it must have its means; hence he asks about the means of penetration."