According to tradition, the Khandhaka was compiled at the first council, mentioned in the text, with the account of the first council added at the second and that of the second at the third. Scholars do not take this literally, but differ as to how far they disagree with it.
The Khandhaka was compiled according to custom at the inaugural council, as stated in the text, with the first council's story included in the second and the second council's account added to the third. Scholars disagree with this narrative, but not necessarily on its literal interpretation.