The semi-official Mehr news agency quoted Larijani as telling reporters on his return from a trip to Moscow that such a move would mean the "the end of negotiations" with world powers to find a solution to the talks over Iran's nuclear programme.
However this phrase was not reported by the official IRNA and ISNA agencies which quoted him as saying that the adoption of a resolution against Iran would signify a major change of direction in the nuclear issue.
"The passing of any resolution against us with the same nature that is now being discussed signifies a change of the path of resolving the nuclear issue," he said, according to the ISNA agency.
"Issuing the resolution under the current conditions means a violation of the commitment to settle the issue peacefully. With this behaviour, they signal to us that you (should) go your way, we go our way."
The Security Council's five permanent members -- Britain, China, France, Russia and the United States -- plus Germany will resume talks Monday to discuss possible sanctions against Tehran.
The United States and its European allies have faced opposition in their aim of imposing swift sanctions against Tehran from Russia and China, which has both demanded substantial changes to the European-proposed draft.
"From our point of view any resolution means a change of direction and that they have said no to negotiations. The fact of even adopting the resolution means that this is the end of negotiations," Mehr quoted Larijani as saying.

Copyright AFP (Agence France-Presse), 2006