The claim is specifically that Reuters said a senior Iranian source stated the U.S. agreed to lift restrictions on Iranian funds held in Qatar and other foreign banks. The fetched Reuters article titled '米、イラン在外凍結資産の解除に同意=イラン高官筋' directly says exactly that, making the core claim well supported. The article also adds a more specific detail that another Iranian source said the U.S. agreed to release $6 billion held in Qatar. Corroboration was attempted via web search and X search; web search surfaced Reuters-related context, while X search returned an API error and did not contribute evidence. Because the wording attributes the assertion to Reuters and to an Iranian source, not to a confirmed U.S. government statement, the claim is best assessed as likely true rather than absolutely confirmed.