While I was praying, Messenger of Allah ﷺ passed me and called me, but I did not go to him until I had finished the prayer. Then I went to him, and he said, "What prevented you from coming to me? Didn't Allah say:-- "O you who believe! Answer the call of Allah (by obeying Him) and His Apostle when He calls you?" He then said, "I will inform you of the greatest Sura in the Qur'an before I leave (the mosque)." When Messenger of Allah ﷺ got ready to leave (the mosque), I reminded him. He said, "It is: 'Praise be to Allah, the Lord of the worlds.' (i.e. Surat-al-Fatiha) As-sab'a Al-Mathani (the seven repeatedly recited Verses).  

كُنْتُ أُصَلِّي فَمَرَّ بِي رَسُولُ اللَّهِ ﷺ فَدَعَانِي فَلَمْ آتِهِ حَتَّى صَلَّيْتُ ثُمَّ أَتَيْتُهُ فَقَالَ مَا مَنَعَكَ أَنْ تَأْتِيَ أَلَمْ يَقُلِ اللَّهُ {يَا أَيُّهَا الَّذِينَ آمَنُوا اسْتَجِيبُوا لِلَّهِ وَلِلرَّسُولِ إِذَا دَعَاكُمْ} ثُمَّ قَالَ لأُعَلِّمَنَّكَ أَعْظَمَ سُورَةٍ فِي الْقُرْآنِ قَبْلَ أَنْ أَخْرُجَ فَذَهَبَ رَسُولُ اللَّهِ ﷺ لِيَخْرُجَ فَذَكَرْتُ لَهُ وَقَالَ مُعَاذٌ حَدَّثَنَا شُعْبَةُ عَنْ خُبَيْبٍ سَمِعَ حَفْصًا سَمِعَ أَبَا سَعِيدٍ رَجُلاً مِنْ أَصْحَابِ النَّبِيِّ ﷺ بِهَذَا وَقَالَ هِيَ {الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ} السَّبْعُ الْمَثَانِي  

While I was praying in the Mosque, Messenger of Allah ﷺ called me but I did not respond to him. Later I said, "O Messenger of Allah ﷺ! I was praying." He said, "Didn't Allah say'--"Give your response to Allah (by obeying Him) and to His Apostle when he calls you." (8.24) He then said to me, "I will teach you a Sura which is the greatest Sura in the Qur'an, before you leave the Mosque." Then he got hold of my hand, and when he intended to leave (the Mosque), I said to him, "Didn't you say to me, 'I will teach you a Sura which is the greatest Sura in the Qur'an?' He said, "Al-Hamdu-Li l-lah Rabbi-l-ʿalamin (i.e. Praise be to Allah, the Lord of the worlds) which is Al-Sab'a Al-Mathani (i.e. seven repeatedly recited Verses) and the Grand Qur'an which has been given to me."  

كُنْتُ أُصَلِّي فِي الْمَسْجِدِ فَدَعَانِي رَسُولُ اللَّهِ ﷺ فَلَمْ أُجِبْهُ فَقُلْتُ يَا رَسُولَ اللَّهِ إِنِّي كُنْتُ أُصَلِّي فَقَالَ أَلَمْ يَقُلِ اللَّهُ {اسْتَجِيبُوا لِلَّهِ وَلِلرَّسُولِ إِذَا دَعَاكُمْ} ثُمَّ قَالَ لِي لأُعَلِّمَنَّكَ سُورَةً هِيَ أَعْظَمُ السُّوَرِ فِي الْقُرْآنِ قَبْلَ أَنْ تَخْرُجَ مِنَ الْمَسْجِدِ ثُمَّ أَخَذَ بِيَدِي فَلَمَّا أَرَادَ أَنْ يَخْرُجَ قُلْتُ لَهُ أَلَمْ تَقُلْ لأُعَلِّمَنَّكَ سُورَةً هِيَ أَعْظَمُ سُورَةٍ فِي الْقُرْآنِ قَالَ {الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ} هِيَ السَّبْعُ الْمَثَانِي وَالْقُرْآنُ الْعَظِيمُ الَّذِي أُوتِيتُهُ  

While I was praying, the Prophet ﷺ passed by and called me, but I did not go to him till I had finished my prayer. When I went to him, he said, "What prevented you from coming?" I said, "I was praying." He said, "Didn't Allah say" "O you who believes Give your response to Allah (by obeying Him) and to His Apostle." (8.24) Then he added, "Shall I tell you the most superior Sura in the Qur'an before I go out of the mosque?" When the Prophet ﷺ intended to go out (of the Mosque), I reminded him and he said, "That is: "Al hamdu-li l-lahi Rabbil-ʿalamin (Surat-al-fatiha)' which is the seven oft repeated verses (Al-Mathani) and the Grand Qur'an which has been given to me."  

مَرَّ بِيَ النَّبِيُّ ﷺ وَأَنَا أُصَلِّي فَدَعَانِي فَلَمْ آتِهِ حَتَّى صَلَّيْتُ ثُمَّ أَتَيْتُ فَقَالَ مَا مَنَعَكَ أَنْ تَأْتِيَ فَقُلْتُ كُنْتُ أُصَلِّي فَقَالَ أَلَمْ يَقُلِ اللَّهُ {يَا أَيُّهَا الَّذِينَ آمَنُوا اسْتَجِيبُوا لِلَّهِ وَلِلرَّسُولِ} ثُمَّ قَالَ أَلاَ أُعَلِّمُكَ أَعْظَمَ سُورَةٍ فِي الْقُرْآنِ قَبْلَ أَنْ أَخْرُجَ مِنَ الْمَسْجِدِ فَذَهَبَ النَّبِيُّ ﷺ لِيَخْرُجَ مِنَ الْمَسْجِدِ فَذَكَّرْتُهُ فَقَالَ {الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ} هِيَ السَّبْعُ الْمَثَانِي وَالْقُرْآنُ الْعَظِيمُ الَّذِي أُوتِيتُهُ  

While I was praying, the Prophet ﷺ called me but I did not respond to his call. Later I said, "O Allah's Apostle! I was praying." He said, "Didn't Allah say: 'O you who believe! Give your response to Allah (by obeying Him) and to His Apostle when he calls you'?" (8.24) He then said, "Shall I not teach you the most superior Surah in the Qur'an?" He said, '(It is), 'Praise be to Allah, the Lord of the worlds. ' (i.e., Surat Al-Fatiha) which consists of seven repeatedly recited Verses and the Magnificent Qur'an which was given to me."  

كُنْتُ أُصَلِّي فَدَعَانِي النَّبِيُّ ﷺ فَلَمْ أُجِبْهُ قُلْتُ يَا رَسُولَ اللَّهِ إِنِّي كُنْتُ أُصَلِّي قَالَ أَلَمْ يَقُلِ اللَّهُ {اسْتَجِيبُوا لِلَّهِ وَلِلرَّسُولِ إِذَا دَعَاكُمْ} ثُمَّ قَالَ أَلاَ أُعَلِّمُكَ أَعْظَمَ سُورَةٍ فِي الْقُرْآنِ قَبْلَ أَنْ تَخْرُجَ مِنَ الْمَسْجِدِ فَأَخَذَ بِيَدِي فَلَمَّا أَرَدْنَا أَنْ نَخْرُجَ قُلْتُ يَا رَسُولَ اللَّهِ إِنَّكَ قُلْتَ لأُعَلِّمَنَّكَ أَعْظَمَ سُورَةٍ مِنَ الْقُرْآنِ قَالَ {الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ} هِيَ السَّبْعُ الْمَثَانِي وَالْقُرْآنُ الْعَظِيمُ الَّذِي أُوتِيتُهُ  

The Prophet ﷺ passed by him when he was praying, and called him. He said: "I finished praying, then I came to him, and he said: 'What kept you from answering me?' He said: 'I was praying.' He said: 'Does not Allah say: O you who believe! Answer Allah (by obeying Him) and (His) Messenger when he calls you to that which will give you life? Shall I not teach you the greatest surah before I leave the masjid?' Then he went to leave, and I said: 'O Messenger of Allah, what about what you said?' He said: "All praise and thanks be to Allah, Lord of all that exists. These are the seven oft-recited that I have been given, and the Grand Quran.'"  

أَنَّ النَّبِيَّ ﷺ مَرَّ بِهِ وَهُوَ يُصَلِّي فَدَعَاهُ قَالَ فَصَلَّيْتُ ثُمَّ أَتَيْتُهُ فَقَالَ مَا مَنَعَكَ أَنْ تُجِيبَنِي قَالَ كُنْتُ أُصَلِّي قَالَ أَلَمْ يَقُلِ اللَّهُ ﷻ { يَا أَيُّهَا الَّذِينَ آمَنُوا اسْتَجِيبُوا لِلَّهِ وَلِلرَّسُولِ إِذَا دَعَاكُمْ لِمَا يُحْيِيكُمْ } أَلاَ أُعَلِّمُكَ أَعْظَمَ سُورَةٍ قَبْلَ أَنْ أَخْرُجَ مِنَ الْمَسْجِدِ قَالَ فَذَهَبَ لِيَخْرُجَ قُلْتُ يَا رَسُولَ اللَّهِ قَوْلَكَ قَالَ الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ هِيَ السَّبْعُ الْمَثَانِي الَّذِي أُوتِيتُ وَالْقُرْآنُ الْعَظِيمُ  

I prayed ant then I came to him. He asked: What prevented you from answering me ? He replied: I was praying. He said: Has not Allah said: "O you who believe, respond to Allah and the Apostle when he calls you to that which gives you life ? (8:24) Let me teach you the greatest surah from the Qur'an or in the Qur'an (the narrator Khalid doubted) before I leave the mosque. I said: (I shall memorize) your saying. He said: It is: "Praise be to Allah, the Lord of the Universe" which is the seven oft-repeated verses, and the mighty Qur'an.  

أَنَّ النَّبِيَّ ﷺ مَرَّ بِهِ وَهُوَ يُصَلِّي فَدَعَاهُ قَالَ فَصَلَّيْتُ ثُمَّ أَتَيْتُهُ قَالَ فَقَالَ مَا مَنَعَكَ أَنْ تُجِيبَنِي قَالَ كُنْتُ أُصَلِّي قَالَ أَلَمْ يَقُلِ اللَّهُ ﷻ { يَا أَيُّهَا الَّذِينَ آمَنُوا اسْتَجِيبُوا لِلَّهِ وَلِلرَّسُولِ إِذَا دَعَاكُمْ لِمَا يُحْيِيكُمْ } لأُعَلِّمَنَّكَ أَعْظَمَ سُورَةٍ مِنَ الْقُرْآنِ أَوْ فِي الْقُرْآنِ شَكَّ خَالِدٌ قَبْلَ أَنْ أَخْرُجَ مِنَ الْمَسْجِدِ قَالَ قُلْتُ يَا رَسُولَ اللَّهِ قَوْلَكَ قَالَ { الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ } وَهِيَ السَّبْعُ الْمَثَانِي الَّتِي أُوتِيتُ وَالْقُرْآنُ الْعَظِيمُ  

The Prophet ﷺ passed by him when he was praying, and called him. He said: "I finished praying, then I came to him, and he said: 'What kept you from answering me?' He said: 'I was praying.' He said: 'Does not Allah say: O you who believe! Answer Allah (by obeying Him) and (His) Messenger when he calls you to that which will give you life? Shall I not teach you the greatest surah before I leave the masjid?' Then he went to leave, and I said: 'O Messenger of Allah, what about what you said?' He said: "All praise and thanks be to Allah, Lord of all that exists. These are the seven oft-recited that I have been given, and the Grand Quran.'" (Using translation from Nasāʾī 913)   

كُنْتُ أُصَلِّي فَمَرَّ بِي رَسُولُ اللهِ ﷺ فَدَعَانِي فَلَمْ آتِهِ حَتَّى صَلَّيْتُ ثُمَّ أَتَيْتُهُ فَقَالَ مَامَنَعَكَ أَنْ تَأْتِيَنِي؟ فَقَالَ إِنِّي كُنْتُ أُصَلِّي قَالَ أَلَمْ يَقُلِ اللهُ تَبَارَكَ وَتَعَالَى {يَا أَيُّهَا الَّذِينَ آمَنُوا اسْتَجِيبُوا لِلَّهِ وَلِلرَّسُولِ إِذَا دَعَاكُمْ لِمَا يُحْيِيكُمْ} [الأنفال 24] ثُمَّ قَالَ أَلَا أُعَلِّمُكُمْ أَعْظَمَ سُورَةٍ فِي الْقُرْآنِ قَبْلَ أَنْ أَخْرُجَ مِنَ الْمَسْجِدِ قَالَ فَذَهَبَ رَسُولُ اللهِ ﷺ لِيَخْرُجَ فَذَكَّرْتُهُ فَقَالَ الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ هِيَ السَّبْعُ الْمَثَانِي وَالْقُرْآنُ الْعَظِيمُ الَّذِي أُوتِيتُهُ  

[Machine] The Messenger of Allah ﷺ passed by me and said, "Did Allah, the Almighty, not say: 'O you who have believed, respond to Allah and to the Messenger when he calls you to that which gives you life. And know that Allah intervenes between a man and his heart and that to Him you will be gathered'?" (Quran 8:24) He said, "Shall I not teach you the greatest Surah in the Quran before I leave the mosque?" When he intended to leave, he said, "All praise is due to Allah, Lord of all the worlds. It is the Seven Oft-Repeated (Al-Fatiha) and the Magnificent Quran which I have been given."  

مَرَّ بِي رَسُولُ اللَّهِ ﷺ فَقَالَ أَلَمْ يَقُلِ اللَّهُ ﷻ {يَا أَيُّهَا الَّذِينَ آمَنُوا اسْتَجِيبُوا لِلَّهِ وَلِلرَّسُولِ إِذَا دَعَاكُمْ لِمَا يُحْيِيكُمْ وَاعْلَمُوا أَنَّ اللهَ يَحُولُ بَيْنَ الْمَرْءِ وَقَلْبِهِ وَأَنَّهُ إِلَيْهِ تُحْشَرُونَ} [الأنفال 24] قَالَ «أَلَا أُعَلِّمُكَ أَعْظَمَ سُورَةٍ فِي الْقُرْآنِ قَبْلَ أَنْ أَخْرُجَ مِنَ الْمَسْجِدِ؟» فَلَمَّا أَرَادَ أَنْ يَخْرُجَ قَالَ «الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ وَهِيَ السَّبْعُ الْمَثَانِي وَالْقُرْآنُ الْعَظِيمُ الَّذِي أُوتِيتُمْ»  

[Machine] The Messenger of Allah ﷺ passed by me and said, "Did not Allah say: 'O you who have believed, respond to Allah and to the Messenger when he calls you' [Quran 8:24]?" Then he said, "Shall I not teach you a Surah that is the greatest Surah in the Quran before I leave the mosque?" When he wanted to leave, he said, "All praise is due to Allah, Lord of the worlds" and it is the seven oft-repeated verses and the Great Quran that you have been given.  

مَرَّ بِي رَسُولُ اللَّهِ ﷺ فَقَالَ «أَلَمْ يَقُلِ اللَّهُ» {يَا أَيُّهَا الَّذِينَ آمَنُوا اسْتَجِيبُوا لِلَّهِ وَلِلرَّسُولِ إِذَا دَعَاكُمْ} [الأنفال 24] ثُمَّ قَالَ «أَلَا أُعَلِّمُكَ سُورَةً أَعْظَمَ سُورَةٍ مِنَ الْقُرْآنِ قَبْلَ أَنْ أَخْرُجَ مِنَ الْمَسْجِدِ؟» فَلَمَّا أَرَادَ أَنْ يَخْرُجَ قَالَ الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ وَهِيَ السَّبْعُ الْمَثَانِي وَالْقُرْآنُ الْعَظِيمُ الَّذِي أُوتِيتُمْ  

[Machine] He informed him that the Messenger of Allah ﷺ said to Ubayy bin Ka'b while he was praying. When he finished his prayer, he placed his hand on Ubayy's hand and said, while he intended to leave through the door of the masjid, "I hope that you do not leave the masjid until you learn a Surah that has been revealed in the Torah, the Injeel, and the Qur'an, like it." Ubayy said, "So I slowed down in my walking, hoping for that. Then I said, 'O Messenger of Allah, which Surah did you promise me?' He said, 'How do you recite it when the prayer is first opened?' I said, "I recite, All praise is due to Allah, the Lord of all the worlds" until I reached its end. The Messenger of Allah ﷺ said, 'It is this Surah and it is the seven repeated verses and the Glorious Qur'an which I have been given.'"  

أَخْبَرَهُ أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لِأُبَيِّ بْنِ كَعْبٍ وَهُوَ يُصَلِّي فَلَمَّا فَرَغَ مِنْ صَلَاتِهِ كَفَّهُ قَالَ فَوَضَعَ النَّبِيُّ ﷺ يَدَهُ عَلَى يَدِي قَالَ وَهُوَ يُرِيدُ أَنْ يَخْرُجَ مِنْ بَابِ الْمَسْجِدِ فَقَالَ «إِنِّي أَرْجُو أَنْ لَا تَخْرُجَ مِنَ الْمَسْجِدِ حَتَّى تَعْلَمَ سُورَةً مَا أُنْزِلَ فِي التَّوْرَاةِ وَلَا فِي الْإِنْجِيلِ وَلَا فِي الْقُرْآنِ مِثْلُهَا» قَالَ فَجَعَلْتُ أَتَبَاطَأُ فِي الْمَشْيِ رَجَاءَ ذَلِكَ ثُمَّ قُلْتُ يَا رَسُولَ اللَّهِ السُّورَةُ الَّتِي وَعَدْتَنِي قَالَ «كَيْفَ تَقْرَأُ إِذَا افْتُتِحَتِ الصَّلَاةُ؟» قَالَ فَقَرَأْتُ الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ حَتَّى أَتَيْتُ عَلَى آخِرِهَا فَقَالَ رَسُولُ اللَّهِ ﷺ «هِيَ هَذِهِ السُّورَةُ وَهِيَ السَّبْعُ الْمَثَانِي وَالْقُرْآنُ الْعَظِيمُ الَّذِي أُعْطِيتُ»  

[Machine] "I was praying in the mosque when the Messenger of Allah (PBUH) called me, but I did not respond to him. So I said, 'O Messenger of Allah, I was praying.' He said, 'Did Allah not say, 'Respond to Allah and to the Messenger when he calls you?' Then he said, 'Shall I not teach you a surah that is the greatest surah in the Quran?' I said, 'Yes.' He said, 'Praise be to Allah, the Lord of all the worlds.' It is Surah Al-Fatiha and the Quran that has been given to me.'"  

كُنْتُ أُصَلِّي فِي الْمَسْجِدِ فَدَعَانِي رَسُولُ اللَّهِ ﷺ فَلَمْ أُجِبْهُ فَقُلْتُ يَا رَسُولَ اللَّهِ إِنِّي كُنْتُ أُصَلِّي فَقَالَ «أَلَمْ يَقُلِ اللَّهُ {اسْتَجِيبُوا لِلَّهِ وَلِلرَّسُولِ إِذَا دَعَاكُمْ} ؟ » ثُمَّ قَالَ «أَلَا أُعَلِّمُكَ سُورَةً هِيَ أَعْظَمُ سُورَةٍ فِي الْقُرْآنِ؟ » فَقُلْتُ بَلَى فَقَالَ «الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ هِيَ السَّبْعُ الْمَثَانِي وَالْقُرْآنُ الَّذِي أُوتِيتُهُ»  

[Machine] I was praying when the Messenger of Allah ﷺ called me, but I did not respond to him. When I finished the prayer, he said, "What prevented you from responding to me when I called you? Indeed, Allah says, 'O you who have believed, respond to Allah and to the Messenger when he calls you to that which gives you life'" Then he said, "Do not leave the mosque until I teach you a surah in the Quran." I walked with the Messenger of Allah ﷺ until he was about to leave the mosque, so I reminded him, and he said, "The Opening of the Book, the oft-repeated seven verses and the Great Quran I was given."  

كُنْتُ أُصَلِّي فَدَعَانِي رَسُولُ اللهِ ﷺ فَلَمْ أُجِبْهُ فَلَمَّا قَضَيْتُ الصَّلَاةَ قَالَ «مَا مَنَعَكَ أَنْ تَكُونَ أَجَبْتَنِي أَنْ دَعَوْتُكَ؟» فَإِنَّ اللهَ يَقُولُ {يَا أَيُّهَا الَّذِينَ آمَنُوا اسْتَجِيبُوا لِلَّهِ وَلِلرَّسُولِ إِذَا دَعَاكُمْ لِمَا يُحْيِيكُمْ} ثُمَّ قَالَ «لَا تَخْرُجْ مِنَ الْمَسْجِدِ حَتَّى أُعَلِّمَكَ سُورَةً فِي الْقُرْآنِ» قَالَ فَمَشَيْتُ مَعَ رَسُولِ اللهِ ﷺ حَتَّى كَادَ أَنْ يَخْرُجَ مِنَ الْمَسْجِدِ فَذَكَّرْتُهُ فَقَالَ «فَاتِحَةُ الْكِتَابِ السَّبْعُ الْمَثَانِي وَالْقُرْآنُ الْعَظِيمُ الَّذِي أُوتِيتُهُ»  

The Prophet ﷺ passed by him when he was praying, and called him. He said: "I finished praying, then I came to him, and he said: 'What kept you from answering me?' He said: 'I was praying.' He said: 'Does not Allah say: O you who believe! Answer Allah (by obeying Him) and (His) Messenger when he calls you to that which will give you life? Shall I not teach you the greatest surah before I leave the masjid?' Then he went to leave, and I said: 'O Messenger of Allah, what about what you said?' He said: "All praise and thanks be to Allah, Lord of all that exists. These are the seven oft-recited that I have been given, and the Grand Quran.'" (Using translation from Nasāʾī 913)  

أَنَّ النَّبِيَّ ﷺ مَرَّ بِهِ وَهُوَ يُصَلِّي فَدَعَاهُ قَالَ فَصَلَّيْتُ ثُمَّ أَتَيْتُهُ فَقَالَ «مَا مَنَعَكَ أَنْ تُجِيبَنِي؟» قُلْتُ كُنْتُ أُصَلِّي قَالَ أَلَمْ يَقُلِ اللهُ {يَا أَيُّهَا الَّذِينَ آمَنُوا اسْتَجِيبُوا لِلَّهِ وَلِلرَّسُولِ إِذَا دَعَاكُمْ لَمَّا يُحْيِيكُمْ} [الأنفال 24] أَلَا أُعَلِّمُكَ أَعْظَمَ سُورَةٍ قَبْلَ أَنْ أَخْرُجَ مِنَ الْمَسْجِدِ؟ قُلْتُ بَلَى يَا رَسُولَ اللهِ فَلَمَّا أَرَادَ أَنْ يَخْرُجَ مِنَ الْمَسْجِدِ قُلْتُ يَا رَسُولَ اللهِ قَوْلُكَ قَالَ «الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ هِيَ السَّبْعُ الْمَثَانِي الَّذِي أُوتِيتُ وَالْقُرْآنُ الْعَظِيمُ»  

While I was praying, the Prophet ﷺ passed by and called me, but I did not go to him till I had finished my prayer. When I went to him, he said, "What prevented you from coming?" I said, "I was praying." He said, "Didn't Allah say" "O you who believes Give your response to Allah (by obeying Him) and to His Apostle." (8.24) Then he added, "Shall I tell you the most superior Sura in the Qur'an before I go out of the mosque?" When the Prophet ﷺ intended to go out (of the Mosque), I reminded him and he said, "That is: "Al hamdu-li l-lahi Rabbil-ʿalamin (Surat-al-fatiha)' which is the seven oft repeated verses (Al-Mathani) and the Grand Qur'an which has been given to me." (Using translation from Bukhārī 4703)  

مَرَّ بِي رَسُولُ اللهِ ﷺ وَأَنَا أُصَلِّي فَدَعَانِي فَلَمْ آتِهِ حَتَّى صَلَّيْتُ ثُمَّ أَتَيْتُهُ فَقَالَ لِي «مَا مَنَعَكَ أَنْ تَأْتِيَنِي؟» قُلْتُ كُنْتُ أُصَلِّي فَقَالَ أَلَمْ يَقِلِ اللهُ ﷻ {يَا أَيُّهَا الَّذِينَ آمَنُوا اسْتَجِيبُوا لِلَّهِ وَلِلرَّسُولِ} [الأنفال 24]؟ قَالَ «أَلَا أُعَلِّمُكَ أَعْظَمَ سُورَةٍ فِي الْقُرْآنِ قَبْلَ أَنْ أَخْرُجَ مِنَ الْمَسْجِدِ؟» فَذَهَبَ لِيُخْرِجَ فَذَكَّرْتُهُ فَقَالَ «الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ هِيَ السَّبْعُ الْمَثَانِي وَالْقُرْآنُ الْعَظِيمُ الَّذِي أُوتِيتُهُ»  

The Prophet ﷺ passed by him when he was praying, and called him. He said: "I finished praying, then I came to him, and he said: 'What kept you from answering me?' He said: 'I was praying.' He said: 'Does not Allah say: O you who believe! Answer Allah (by obeying Him) and (His) Messenger when he calls you to that which will give you life? Shall I not teach you the greatest surah before I leave the masjid?' Then he went to leave, and I said: 'O Messenger of Allah, what about what you said?' He said: "All praise and thanks be to Allah, Lord of all that exists. These are the seven oft-recited that I have been given, and the Grand Quran.'" (Using translation from Nasāʾī 913)   

أَنَّ النَّبِيَّ ﷺ دَعَاهُ وَهُوَ يُصَلِّي فَصَلَّى ثُمَّ أَتَاهُ فَقَالَ مَا مَنَعَكَ أَنْ تُجِيبَنِي إِذْ دَعَوْتُكَ؟ قَالَ إِنِّي كُنْتُ أُصَلِّي فَقَالَ أَلَمْ يَقُلِ اللهُ ﷻ {يَا أَيُّهَا الَّذِينَ آمَنُوا اسْتَجِيبُوا لِلَّهِ وَلِلرَّسُولِ إِذَا دَعَاكُمْ} [الأنفال 24] الْآيَةَ ثُمَّ قَالَ أَلَا أُعَلِّمُكَ أَعْظَمَ سُورَةٍ فِي الْقُرْآنِ؟ قَالَ فَكَأَنَّهُ نَسِيَهَا أَوْ نَسِيَ قُلْتُ يَا رَسُولَ اللهِ الَّذِي قُلْتَ لِي قَالَ الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ هِيَ السَّبْعُ الْمَثَانِي وَالْقُرْآنُ الْعَظِيمُ الَّذِي أُوتِيتُهُ