Musannaf Ibn Abi Shayba 21:32

Abu al-Ahwas narrated to us, from Abu Ishaq, from al-Hakam, who said: The Messenger of Allah (may Allah bless him and grant him peace) used to seek refuge from four things: "O Allah, I seek refuge in You from the overcoming of the enemy, and from the overcoming of debt, and the trial of the Dajjal, and the punishment of the grave."