Musnad Ahmad 1153:454

Sulayman ibn Dawud narrated to us, he said: Harb ibn Shaddad narrated to us, from Yahya ibn Abi Kathir, he said: Al-Hadrami ibn Lahid narrated to me, that Dhakwan Abu Salih informed him, that Aisha informed him, she said: The Messenger of Allah, peace and blessings of Allah be upon him, entered upon me while I was weeping, so he said to me: "What makes you weep?" I said: O Messenger of Allah, I remembered the Dajjal, so I wept. The Messenger of Allah, peace and blessings of Allah be upon him, said: "If the Dajjal emerges while I am alive, I will suffice you against him. And if he emerges after me, then your Lord, the Mighty and Majestic, is not one-eyed. He will emerge in the Jewish quarter of Isfahan, until he comes to Medina and descends at its outskirts. It will have seven gates on that day, and at every mountain pass of it there will be two angels. The wicked of its people will go out to him, until they reach Ash-Sham, a city in Palestine at the gate of Ludd." Abu Dawud said once: "Until he comes to Palestine at the gate of Ludd. Then Isa, peace be upon him, will descend and kill him. Then Isa, peace be upon him, will remain on the earth for forty years as a just leader and a fair judge."