The Prophet [SAW] used to seek refuge with Allah from the torment of the grave and the tribulation of the Dajjal, and he said: "You will be tried in your graves." (Using translation from Nasāʾī 5504)
أَنَّ النَّبِيِّ ﷺ كَانَ يَسْتَعِيذُ بِاللهِ مِنْ عَذَابِ الْقَبْرِ وَمِنْ فِتْنَةِ الدَّجَّالِ