佛說觀佛三昧海經 6.44

6.44

爾時世尊於閻浮提執持三衣，告勅阿難、難陀、羅睺羅等五百比丘，足步大地，始舉足時地六種動；下足之時，地生寶宮如梵王宮，宮宮相次懸在空中，隨映佛後在階道側。持地菩薩并彌勒等一千菩薩一時合掌，以萬億音歌詠如來無量德行。爾時梵王無數百千諸梵天等，手擎香爐無量妓樂，以供養佛立侍左階；釋提桓因無數天子百千天女，鼓樂絃歌亦立左階；無數聲聞菩薩大眾侍立右階。

At that time, the Bhagavat in Jambudvīpa took up his three robes and instructed Ānanda, Nanda, Rāhula, and the other five hundred monks to walk upon the great earth on foot. When he first raised his foot, the earth shook in six ways; when he set down his foot, jeweled palaces like the palace of the Brahmā King sprang forth from the earth, palace after palace in succession suspended in the empty sky, following and shining behind the Buddha by the side of the staircase path. Bodhisattva Dharaṇīṃdhara, together with Maitreya and one thousand bodhisattvas, joined their palms simultaneously and praised the immeasurable virtuous deeds of the Tathāgata with myriad billions of sounds. At that time, the Brahmā King and countless hundreds of thousands of Brahmā devas, holding incense burners and immeasurable musical performances to make offerings to the Buddha, stood attending on the left staircase; Śakra Devānām Indra, along with countless devaputras and hundreds of thousands of devīs, playing drums, musical instruments, and singing with strings, also stood on the left staircase; the countless great assembly of śrāvakas and bodhisattvas stood attending on the right staircase.