It was narrated from Abu Hurairah that the Messenger of Allah used to say:
Allahumma inni a udhu bika min adhabil-qabri wa a 'udhu bika min 'adhabin-nar, wa a 'udhu bika min fitnatil-mahya wal-mamat, wa audhu bika min fitnatil-masihid-dajjal (O Allah, I seek refuge with you from the torment of the grave, and I seek refuge with You from the torment of the Fire, and I seek refuge with You from the trial of the Dajjal).