On Yuan Chwang's Travels in India, 629–645 A.D. v2.c18.26

v2.c18.26

The three great religious gatherings, here called “Three Assemblies” (or Meetings), which are to be called by Maitreya Buddha, and at which he is to preach with great effect, are popularly known in Chinese Buddhist works as the “Lung-hua-san-hui”, the “Three Lung-hua Meetings”. They are to be held under Dragon-Flower (Lung-hua) trees; hence their name, the Dragon-Flower (or Champac) tree being the Bodhi-tree of Maitreya Buddha. In these Meetings, according to the prediction, Maitreya Buddha is to receive into his communion in all 282 Koṭis of converts, and those of his congregations who had in previous births been good Buddhists will then attain arhatship.