Iranian President Hassan Rouhani defended the embattled 2015 nuclear deal between his country, the U.S. and its allies, saying that President Trump could not reverse it.

"In the nuclear negotiations and agreement we reached issues and benefits that are not reversible," Rouhani said at Tehran University on Saturday, according to Reuters. "No one can turn that back, not Mr. Trump or anyone else."

"Even if 10 other Trumps are created in the world, these are not reversible," he continued.

Under the deal, Iran agreed to limit its nuclear program in exchange for the easing of economic sanctions. Trump, however, is expected to announce that he will decertify the deal and has called it an "embarrassment" and "the worst deal ever negotiated." The deadline for him to certify that Iran is complying with its terms is Oct. 15.

If he does not do so, then Congress will have 60 days to decide whether to reimpose the sanctions that were waived under the deal.

Inspectors from the United Nations have verified Iranian compliance with the terms.

The international reputation of the U.S. would be harmed if the U.S. violates the deal, Rouhani argued.

"If America carries out any violations today, the whole world will condemn America," he said. "They will not condemn Iran. Then they will say why did you trust America and sign an agreement with them?"