The Reuters report, 'Iran, US receive plan to end hostilities, immediate ceasefire, source says | Reuters,' directly matches the statement’s main elements: agreement sought by Sunday for implementation by Monday, an immediate ceasefire, reopening of the Strait of Hormuz, and a final deal within 15–20 days. Reuters also says the eventual agreement could include Iranian commitments not to pursue nuclear weapons in exchange for sanctions relief and asset unfreezing, which aligns with the headline framing about linking nuclear curbs to sanctions relief. The Times of India article independently repeats the same details while citing Reuters, providing secondary corroboration. No fetched source in this run contradicted the claim. The only caveat is that the exact phrase 'by Monday' appears in Reuters as implementation timing contingent on agreement that day, rather than a finalized signed deal by Monday.