Abu Hurayra reported that the Messenger of Allah, may Allah bless him and grant him peace, said, “Race to good actions as fast as you can. What are you waiting for except delayed poverty, oppressive wealth, debilitating illness, dottering senility, a swift death or the Dajjal? Or are you waiting for an unseen evil, or the Last Hour? The Last Hour will be most bitter and terrible.” [at-Tirmidhi]