Anyone knows the particular sutta in which the buddhist simile of the rope and the snake can be found?!?

Answer 1

I don't know about Buddhist...but that was originally a Hindu reference (from the Vedas, I believe).

~ Eric Putkonen

Answer 2

Without the knowledge of the rope, the “snake” engenders fear;
with familiarity, that misunderstanding clears. As the world floats, the true nature of Atman awakens that note of fearlessness - once you have the knowledge of the Atman – the world is nothing but Atman.

The reference has been quoted in quite a few Sanskrit compilations, the oldest might be the Ashtavakra Samhita. An online English translation with the reference is available at:
http://www.vedanta.org/reading/monthly/articles/2005/10.ashtavakra.pdf

Answer 3

The rope and the snake deals with the logic of valid perception vs. correct perceptions but darned if I can remember which sutra my teacher said it was from. I'm on vacation too, which is of no help to you either... perhaps if you look in Buddhanet.net you might find it. There are also links to various websites that offer translations of the sutras available... I apologize that I'm of no further help.

EDIT: just made a call was told it was the "King of Samadhi Sutra", don't know how true that is. Perhaps you can check on it for yourself and see. Sorry I'm not much help beyond that.

_()_