觀無量壽佛經疏 4.153

4.153

竊以真宗叵遇，淨土之要難逢，欲使五趣齊生，是以勸聞於後代。但如來神力轉變無方，隱顯隨機王宮密化，於是耆闍聖眾小智懷疑，佛後還山弗闚委況，於時阿難為宣王宮之化定散兩門，異眾因此同聞，莫不奉行頂戴。

I humbly consider that the true teaching is difficult to encounter, and the essential [path] of the Pure Land is hard to meet. Desiring to cause [beings of] the five destinies to be reborn together, [the sūtra] was thus exhorted to be heard by later generations. Yet the Tathāgata's spiritual powers transform without fixed measure, concealing and revealing according to capacities, secretly transforming [beings] in the royal palace. Thereupon the holy assembly of Gṛdhrakūṭa of lesser wisdom harboured doubts; when the Buddha later returned to the mountain, they had not observed the detailed circumstances. At that time Ānanda proclaimed for them the transformation in the royal palace, the two gates of meditative and non-meditative [good]; because of this, the various assemblies heard it together, and none failed to accept, practice, and revere it.