Musnad Ahmad 32:1043

Bahz and ‘Affan narrated to us, they said: Hammad ibn Salamah narrated to us, Ishaq ibn ‘Abdullah ibn Abi Talhah narrated to us, from Anas ibn Malik, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "The Dajjal will come and tread the earth, except for Makkah and Al-Madinah. He will come to Al-Madinah and find at every pass of its passes rows of angels. He will come to the salt marsh of Al-Jurf and pitch his tent. Then Al-Madinah will shake with three tremors, and every hypocrite man and hypocrite woman will go out to him."