Dua for Protection from the Dajjal (Antichrist)
اللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ عَذَابِ جَهَنَّمَ، وَمِنْ عَذَابِ الْقَبْرِ، وَمِنْ فِتْنَةِ الْمَحْيَا وَالْمَمَاتِ، وَمِنْ شَرِّ فِتْنَةِ الْمَسِيحِ الدَّجَّالِ
Allahumma inni a'udhu bika min 'adhabi jahannam, wa min 'adhabil-qabr, wa min fitnatil-mahya wal-mamat, wa min sharri fitnatil-masihid-dajjal.
"O Allah, I seek refuge in You from the punishment of Hellfire, and from the punishment of the grave, and from the trials of life and death, and from the evil of the trial of the False Messiah (Dajjal)."
Sahih Muslim 588
Spiritual Benefits
This dua seeks refuge from the four greatest trials a human can face, the climax being the Dajjal, which the Prophet (PBUH) warned is the greatest tribulation in human history.
When Should I Say This Dua?
Recite this in every prayer after completing the final Tashahhud, right before the Tasleem.
Proper Etiquette (Sunnah)
This should be a staple in every single obligatory and voluntary prayer.