وَبِعَذَابِ الْقَبْرِ لِمَنْ كَانَ لَهُ أَهْلًا وَسُؤَالِ مُنْكَرٍ وَنَكِيرٍ فِي قَبْرِهِ عَنْ رَبِّهِ وَدِينِهِ وَنَبِيِّهِ عَلَى مَا جَاءَتْ بِهِ الْأَخْبَارُ عَنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَعَنِ الصَّحَابَةِ رِضْوَانُ اللَّهِ عَلَيْهِمْ أَجْمَعِينَ
We believe in punishment of the grave for those liable to it, and in the questioning by Munkar and Nakir concerning one's Lord, religion and Prophet, as transmitted from the Messenger of Allah ﷺ and the Companions.
Grave punishment and questioning in the grave belong to the unseen and are established through Qur'anic passages and transmitted Prophetic reports.