"I asked the Messenger of Allah ﷺ about the torment of the grave, and he siad: 'Yes, the torment of the grave is real.'" 'Aishah said: "After that I never saw the Messenger of Allah ﷺ offer any prayer but he would seek refuge with Allah (SWT) from the torment of the grave." (Using translation from Nasāʾī 1308)  

سَأَلْتُ رَسُولَ اللهِ ﷺ عَنْ عَذَابِ الْقَبْرِ فَقَالَ «نَعَمْ عَذَابُ الْقَبْرِ حَقٌّ» قَالَتْ عَائِشَةُ فَمَا رَأَيْتُ رَسُولَ اللهِ ﷺ يُصَلِّي صَلَاةً بَعْدُ إِلَّا تَعَوَّذَ مِنْ عَذَابِ الْقَبْرِ  

The Messenger of Allah ﷺ used to make supplication during the prayer saying: "O Allah, I seek refuge in Thee from the punishment of the grave; I seek refuge in Thee from the trial of the Antichrist; I seek refuge in Thee from the trial of life and the trial of death; O Allah, I seek refuge in Thee from sin and debt." Someone said to him: How often you seek refuge from debt! He replied: When a man is in debt, he talks and tells lies, makes promises and breaks them. (Using translation from Abū Dāʾūd 880)  

أَنَّ رَسُولَ اللهِ ﷺ كَانَ يَدْعُو فِي الصَّلَاةِ «اللهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ عَذَابِ الْقَبْرِ وَأَعُوذُ بِكَ مِنْ فِتْنَةِ الْمَسِيحِ الدَّجَّالِ وَأَعُوذُ بِكَ مِنْ فِتْنَةِ الْمَحْيَا وَالْمَمَاتِ اللهُمَّ إِنِّي أَعُوذُ بِكَ مِنَ الْمَأْثَمِ وَالْمَغْرَمِ» فَقَالَ قَائِلٌ مَا أَكْثَرَ مَا تَسْتَعِيذُ مِنَ الْمَغْرَم فَقَالَ «إِنَّ الرَّجُلَ إِذَا غَرِمَ حَدَّثَ فَكَذَبَ وَوَعَدَ فَأَخْلَفَ»  

"I heard Abu Hurairah say: 'The Messenger of Allah ﷺ said: When one of you recites the tashahhud, let him seek refuge with Allah (SWT) from our things: From the torment of hell, from the torment of the grave, from the trials of life and death and from the evils of the Dajjal. Then let him pray for himself asking whatever he wants.'" (Using translation from Nasāʾī 1310)  

قَالَ رَسُولُ اللهِ ﷺ إِذَا تَشَهَّدَ أَحَدُكُمْ فَلْيَتَعَوَّذْ مِنْ أَرْبَعٍ مِنْ عَذَابِ جَهَنَّمَ وَعَذَابِ الْقَبْرِ وَفِتْنَةِ الْمَحْيَا وَالْمَمَاتِ وَمِنْ شَرِّ الْمَسِيحِ الدَّجَّالِ ثُمَّ يَدْعُو لِنَفْسِهِ بِمَا بَدَا لَهُ