Hisham bin Amir reported,

I also heard the Messenger of Allah ﷺ say, "By Allah, from the creation of Adam until the coming of the Hour there is no matter greater than the Dajjal."

قال وسمعت رسول الله ﷺ يقول والله ما بين خلق آدم إلى قيام الساعة أمر أعظم من الدجال