It is narrated from Sayyiduna Nafi’ bin ‘Utbah (may Allah be pleased with him), he says: I participated in a battle with the Messenger of Allah (peace and blessings be upon him). Some people came to the Prophet (peace and blessings be upon him) from the western region; they were wearing woolen clothes. They met the Prophet (peace and blessings be upon him) near a mound; they were standing and the Prophet (peace and blessings be upon him) was sitting. I also came and stood between the Prophet (peace and blessings be upon him) and them, and I remembered four things from the Prophet (peace and blessings be upon him); now I can count them on my hand. The Prophet (peace and blessings be upon him) said: You will fight the inhabitants of the Arabian Peninsula, Allah Almighty will grant victory; then you will fight the Persians, that too will be conquered; then you will fight the Romans, Allah Almighty will grant victory; and then you will fight the Dajjal, and Allah Almighty will grant you victory over him as well.