"One of the companions of the Prophet ﷺ pitched a tent on a grave without knowing that it was a grave. Suddenly he heard a person from the grave reciting Surah al-Mulk till he completed it. So he went to the Prophet ﷺ and said: 'Oh Messenger of Allah, I pitched my tent on a grave without realizing that is was a grave. Then suddenly I heard a person from the grave reciting Surah al-Mulk till he completed it.' The Messenger of Allah ﷺ said: 'It is the defender, it is the deliverer - it delivers from the punishment of the grave.'" (Using translation from Tirmidhī 2890)
ضَرَبَ بَعْضُ أَصْحَابِ النَّبِيِّ ﷺ خِبَاءً عَلَى قَبْرٍ وَلَا يَحْسَبُ أَنَّهُ قَبْرٌ فَإِذَا هُوَ إِنْسَانٌ يَقْرَأُ {تَبَارَكَ الَّذِي بِيَدِهِ الْمُلْكُ} حَتَّى خَتَمَهَا فَأَتَى النَّبِيَّ ﷺ فَقَالَ يَا رَسُولَ اللهِ ضَرَبْتُ خِبَائِي عَلَى قَبْرٍ وَأَنَا لَا أَحْسَبُ أَنَّهُ قَبْرٌ فَإِذَا إِنْسَانٌ يَقْرَأُ تَبَارَكَ حَتَّى خَتَمَهَا فَقَالَ رَسُولُ اللهِ ﷺ «هِيَ الْمَانِعَةُ هِيَ الْمُنْجِيَةُ تُنْجِيهِ مِنْ عَذَابِ الْقَبْرِ»