The Prophet ﷺ 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." (Using translation from Abū Dāʾūd 984)
كَانَ النَّبِيُّ ﷺ يَقُولُ بَعْدَ التَّشَهُّدِ «اللهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ عَذَابِ جَهَنَّمَ وَأَعُوذُ بِكَ مِنْ عَذَابِ الْقَبْرِ وَأَعُوذُ بِكَ مِنْ فِتْنَةِ الدَّجَّالِ وَأَعُوذُ بِكَ مِنْ فِتْنَةِ الْمَحْيَا وَالْمَمَاتِ»