Musnad Ahmad

It is narrated from Hazrat Awf bin Malik (may Allah be pleased with him) that once I sought permission from the Noble Prophet (peace and blessings be upon him) to enter the house and asked, "Should I come in completely or half?" The Noble Prophet (peace and blessings be upon him) said, "Come in completely." So I went inside. At that time, the Noble Prophet (peace and blessings be upon him) was performing ablution excellently. He said to me, "O Awf bin Malik! Count six things before the Day of Judgment comes: First, the death of your Prophet will occur; then, Bait al-Maqdis will be conquered; then, a plague of death will spread among you just as it spreads among sheep; then, the appearance of tribulations; and wealth will increase so much that if a man is given a hundred dinars, he will still remain dissatisfied; then, the Romans will come to fight you under eighty banners, under each banner will be an army of twelve thousand."