"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.'"  

ضَرَبَ بَعْضُ أَصْحَابِ النَّبِيِّ ﷺ خِبَاءَهُ عَلَى قَبْرٍ وَهُوَ لاَ يَحْسِبُ أَنَّهُ قَبْرٌ فَإِذَا فِيهِ إِنْسَانٌ يَقْرَأُ سُورَةَ تَبَارَكَ الَّذِي بِيَدِهِ الْمُلْكُ حَتَّى خَتَمَهَا فَأَتَى النَّبِيَّ ﷺ فَقَالَ يَا رَسُولَ اللَّهِ إِنِّي ضَرَبْتُ خِبَائِي عَلَى قَبْرٍ وَأَنَا لاَ أَحْسِبُ أَنَّهُ قَبْرٌ فَإِذَا فِيهِ إِنْسَانٌ يَقْرَأُ سُورَةَ تَبَارَكَ الْمُلْكُ حَتَّى خَتَمَهَا فَقَالَ رَسُولُ اللَّهِ ﷺ هِيَ الْمَانِعَةُ هِيَ الْمُنْجِيَةُ تُنْجِيهِ مِنْ عَذَابِ الْقَبْرِ  

that the Prophet ﷺ said: "Indeed there is a Surah in the Qur'an of thirty Ayat, which intercedes for a man until he is forgiven. It is [Surah] Tabarak Alladhi Biyadihil-Mulk."  

عَنِ النَّبِيِّ ﷺ قَالَ إِنَّ سُورَةً مِنَ الْقُرْآنِ ثَلاَثُونَ آيَةً شَفَعَتْ لِرَجُلٍ حَتَّى غُفِرَ لَهُ وَهِيَ سُورَةُ تَبَارَكَ الَّذِي بِيَدِهِ الْمُلْكُ هَذَا حَدِيثٌ حَسَنٌ  

The Prophet ﷺ would not sleep until he recited Alif Lam Mim Tanzil and: Tabarak Alladhi Biyadihil-Mulk." This Hadith was reported similarly by more than one from Laith bin Abi Sulaim. Mughirah bin Muslim reported it from Abu Az-Zubair, from Jabir from the Prophet ﷺ and it is similar to this. Zuhair reported it and said: "I said to Abu Az-Zubair: 'Did you hear Jabir mentioning this Hadith?' He said: 'Safwan or Ibn Safwan informed me of it.'" It is as if Zuhair rejected the idea that this Hadith was from Abu Az-Zubair from Jabir. (Another chain) with similar in meaning. (Another chain) that Tawus said: "They are seventy good merits more of virtue in it than every Surah in the Qur'an."  

أَنَّ النَّبِيَّ ﷺ كَانَ لاَ يَنَامُ حَتَّى يَقْرَأَ (الم * تَنْزِيلُ ) وَ ( تَبَارَكَ الَّذِي بِيَدِهِ الْمُلْكُ )