Sahih Muslim Book - 6, Hadith - 1888

وَحَدَّثَنِى مُحَمَّدُ بْنُ حَاتِمٍ وَيَعْقُوبُ بْنُ إِبْرَاهِيمَ جَمِيعًا عَنْ يَحْيَى - قَالَ ابْنُ حَاتِمٍ حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ - حَدَّثَنَا يَزِيدُ بْنُ كَيْسَانَ حَدَّثَنَا أَبُو حَازِمٍ عَنْ أَبِى هُرَيْرَةَ قَالَ قَالَ رَسُولُ اللَّهِ -صلى الله عليه وسلم- « احْشِدُوا فَإِنِّى سَأَقْرَأُ عَلَيْكُمْ ثُلُثَ الْقُرْآنِ ». فَحَشَدَ مَنْ حَشَدَ ثُمَّ خَرَجَ نَبِىُّ اللَّهِ -صلى الله عليه وسلم- فَقَرَأَ ( قُلْ هُوَ اللَّهُ أَحَدٌ) ثُمَّ دَخَلَ فَقَالَ بَعْضُنَا لِبَعْضٍ إِنِّى أُرَى هَذَا خَبَرٌ جَاءَهُ مِنَ السَّمَاءِ فَذَاكَ الَّذِى أَدْخَلَهُ. ثُمَّ خَرَجَ نَبِىُّ اللَّهِ -صلى الله عليه وسلم- فَقَالَ « إِنِّى قُلْتُ لَكُمْ سَأَقْرَأُ عَلَيْكُمْ ثُلُثَ الْقُرْآنِ أَلاَ إِنَّهَا تَعْدِلُ ثُلُثَ الْقُرْآنِ ».

It was narrated that Abu Hurairah said: "The Messenger of Allah (s.a.w) said: 'Gather together, for I am going to recite one-third of the Qu'an to you.' So the people gathered, then the Prophet of Allah (s.a.w) came out and recited: "Say: "He is Allah, (the) One)" then he went in. We said to one another: 'Perhaps there is news that has come to him from heaven and that is why he has gone in.' Then the Prophet of Allah (s.a.w) came out and said: 'I told you that I was going to recite one-third of the Qur'an to you, and it is equivalent to one-third of the Qur'an.'"