Silsilah as-Sahihah 3614 — Disbelievers Are Ransom for Believers

Abu Burdah narrates from his father Abu Musa Ash'ari (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "When the Day of Resurrection comes, an angel will bring a disbeliever to every believer and will say, 'O believer! Take this disbeliever, he is your ransom from Hell.'"