Sahih Muslim Book 4, Hadith Number 1221.

Chapter : Dhikr after the prayer.

Abu Huraira reported the Messenger of Allah (may peace be upon him) as saying: Seek refuge with Allah from the torment of Hell, seek refuge with Allah from the torment of the grave, and seek refuge with Allah from the trial of Masih al-Dajjal and seek refuge with Allah from the trial of life and death.