Signs of His Prophethood, peace and blessings be upon him

From Abu Hurairah (may Allah be pleased with him), from the Prophet (peace and blessings be upon him), who said: “The Hour will not be established until there is much killing, and until the land of Arabia returns to being meadows and rivers.” It is inferred from this hadith that it serves as a sign of his prophethood (peace and blessings be upon him), as he informed his companions about certain unseen matters known only to Allah, for the sake of reflection, admonition, and preparation for those days.