法界次第初門 3.187

3.187

八、不竭音。如來極果，願行無盡，是以住於無盡法藏，故出音聲滔滔無盡，其響不竭，能令聞者尋其語義無盡無遺，至成無盡常住之果，故名不竭音也。

8. The inexhaustible voice: In the ultimate fruition of the Tathāgata, vows and practices are inexhaustible, and he therefore abides in the inexhaustible treasury of phenomena; thus, the sound he emits is surging and endless, its resonance never exhausting, able to cause those who hear it to trace its words and meanings without end or omission, reaching the attainment of the inexhaustible and permanently abiding fruition; hence it is called the inexhaustible voice.