Ebrahim Azizi, head of the Iranian parliament's National Security and Foreign Policy Committee, warned that any breach of the memorandum of understanding between Tehran and Washington would trigger a "crushing response" from Iran.
The agreement is due to be formally signed on Friday as the two sides prepare for further negotiations on a broader settlement.
In a social media post, Azizi said: "Iranian resilience forced a strategic pivot: the U.S. came to the table on Iran's terms."
He added: "Now, Washington must prove its commitment by ending the war against Lebanon and upholding every clause of the MOU. The era of unilateral imposition against Iranians is over."
Iranian resilience forced a strategic pivot: the U.S. came to the table on Iran's terms.
