by Will » Sat Jul 07, 2012 3:01 pm
Leo,
Ven. Huifeng or Jeff may know.
The source would depend on which is the older sutra between the Avatamsaka & the Original Karmas one. Also, chapters can be and were, stand-alone sutras, so the earliest appearance of these stages is not known by me.
Basically, there is not even one Buddha; there is only great wisdom. Bodhisattva Hsuan Hua