Sayyiduna Awf bin Malik (may Allah be pleased with him) says: I came to the Messenger of Allah (peace and blessings be upon him) while he (peace and blessings be upon him) was in a tent of leather. He (peace and blessings be upon him) performed a thorough ablution, then said: "O Awf, count six things before the Hour." I said: What are they, O Messenger of Allah? He (peace and blessings be upon him) said: "My death." This grieved me greatly. He (peace and blessings be upon him) said: "Say: one." I said: One. "The second: the conquest of Bayt al-Maqdis (Jerusalem); the third: a pestilence will spread among you as pestilence spreads among sheep; the fourth: such an abundance of wealth that a man will be given a hundred dinars and will still consider it too little; then a tribulation will arise that will enter every house of the Arabs; and there will be a truce between you and Banu al-Asfar (the Romans), then they will break the covenant and come against you under eighty banners, with twelve thousand troops under each banner."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 15161