It is narrated from Hazrat Nafi' bin Utbah (may Allah be pleased with him) that the Prophet said: You will fight against the people of the Arabian Peninsula and Allah will grant you victory over them. Then you will fight against the people of Persia and Allah will grant you victory over them as well. Then you will fight against the people of Rome and Allah will grant you victory over them as well. Then you will fight against the Dajjal and Allah will grant you victory over him as well.

It is narrated from Hazrat Nafi’ bin Utbah (may Allah be pleased with him) that once I was with the Prophet in a battle. A group of people came to the Prophet from the west; they were wearing woolen clothes. Near a mound, they met the Prophet Muhammad (peace be upon him). The Prophet (peace be upon him) was seated and those people were standing. I also came and stood among them. I counted and preserved four things from the Prophet (peace be upon him). The Prophet said: You will fight against the people of the Arabian Peninsula and Allah will grant you victory over them. Then you will fight against the people of Persia and Allah will grant you victory over them as well. Then you will fight against the people of Rome and Allah will grant you victory over them as well. Then you will fight against the Dajjal and Allah will grant you victory over him as well.