[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