al-As says that the Apostle of God (PBUH) observed...

al-As says that the Apostle of God (PBUH) observed: "Dajjal will arise in my people and will survive for forty (here the reporter is not certain whether the Prophet mentioned forty days or forty months or forty years). Then God shall send Christ, son of Mary, unto the world. He will resemble in appearance with 'Urwa b. Masud (a companion of the Prophet). Christ will pursue Dajjal and put him to death.

Following this for a period of seven years the state of the world will be such that a quarrel between two…