大方廣佛華嚴經疏 55.23

55.23

二修入眾殊。唯初信內有三會，四眾諸類不同，顯創修故，表通收故。住位已去，善財一身行別，在已入位希故。

Second, the variety in assemblies of cultivation and entry: only within the initial faith are there three assemblies, with the fourfold assembly and various kinds being diverse, to reveal newly cultivating and to represent comprehensive gathering. From the station of dwelling onward, Sudhana is a single person whose practices are distinct, representing that those who have already entered the stations are rare.