Hadith
Abu Hurayrah (raḍiy Allāhu ‘anhu) narrates that the Messenger of Allah ﷺ said: “When any one of you utters the tashahhud (in salah), he should seek refuge with Allah from four and should say [the above].” (Muslim 588)
DUA
 اَللّٰهُمَّ إِنِّيْ أَعُوْذُ بِكَ مِنْ عَذَابِ جَهَنَّمَ ، وَمِنْ عَذَابِ الْقَبْرِ ، وَمِنْ فِتْنَةِ الْمَحْيَا وَالْمَمَاتِ ، وَمِنْ شَرِّ فِتْنَةِ الْمَسِيْحِ الدَّجَّالِ.
Translation
O Allah, I seek Your protection from the punishment of the Hell-fire, and from the punishment of the grave, and from the trials of life and death, and from the evil of the tribulation of Dajjāl, the false Messiah.