三彌勒經疏 1.78

1.78

大心眾生者，彌勒示在因位故，同眾生也。化成供具者，四事供養名為供具，或則寶宮名為供具。

"Sentient beings of great mind" means that because Maitreya manifests in the causal stage, he is identical to sentient beings. "Transformed into articles of offering": the four necessities of offering are called articles of offering; alternatively, the jeweled palace is called an article of offering.