淨名經集解關中疏 2.353

2.353

Ānanda said to the Buddha: "World-Honoured One, by what causes and conditions is there this auspicious response, so that this place has suddenly become vast, spacious, and adorned, and the entire assembly has turned golden?" / Second, asking the reason. Śāriputra and Kāśyapa followed Mañjuśrī in carrying out transformation. Ānanda the attendant remained at the Āmrapālī [Grove] to guide [the assembly], hence he initiated [the inquiry] on account of the omen.