[Buddha-l] constrained in his perception

[Sherab Lodro]

Dear List members,

    A friend has sent me a note asking:

"In one of the Theravaden sutras the Buddha speaks of being constrained in 
his perception by being in a human body.  Can you recall which sutra that is 
in?  If I recall correctly, he makes a distinction between a Buddha in a 
body and a Buddha after parinirvana unincombered by a body.  Any idea?"

    I have no idea.  Perhaps someone can provide the information of the 
sutra and the text (in English translation) that he is indicating or 
conversly idicate that no such text exists?  All help appreaciated.

Sherab