What's the correct ruling on this situation?

[jinyk]

As the hand was called (all moneys in) and the card could clearly be identified and recoverable, the hand is live. The ruling will vary on the card room, floor, and exact details of this "mucking" and how close the cards were to the muck, and the dealers and other player's confidence in their recall of what exactly happened, but I believe most floors would rule this way.

Note: The only player dumber than the BB is the "player" that made the comment. Don't be that fool.