>
>There is also another sutta or story where a monk meets the Buddha and they
>discuss their personal doctrines. In the end, when the Buddha asks the
>other monks who is teacher is, that monk replies that his teacher is one
>called "the Buddha". Only that does he discover that the Teacher is right
>before him. Anyone remember the reference of this interesting sutta.

Perhaps that is the Dhaatuvibhangasutta (M140). This has a novice
'Pukkusaati' who doesn't recognize the Buddha until after their
discussion.

Interestingly, the stories begins very similarly to one of the first
stories in the Dhp-a (Tissa the fat) with the Buddha arriving to
spend a single night in a potter's workshop, and being told there is
another monk who has come first. Luckily they don't get into an
argument, like in the Dhp-a story.