Prayer (Kitab Al-Salat): Details of Commencing Prayer
Dawud :: Book 3 : Hadith 979
Narrated Abdullah ibn Abbas:
The Prophet (peace_be_upon_him) used to say after the tashahhud: "O Allah, I seek refuge in Thee from the punishment in Hell, and I seek refuge in Thee from the punishment in the grave, and I seek refuge in Thee from the trial of antichrist, and I seek refuge in Thee from the trial of life and death."