Musnad Ahmad 298:15

Husayn ibn Muhammad narrated to us, he said: Sulayman ibn al-Mughirah narrated to us, from Humayd—meaning Ibn Hilal—from Hisham ibn Amir al-Ansari, who said: I heard the Prophet, peace and blessings of Allah be upon him, saying: "There is no tribulation between the creation of Adam and the establishment of the Hour that is greater than the tribulation of the Dajjal."