Musnad Ahmad 158
It was narrated from al Miswar bin Makhramah that 'Umar bin al Khattab said:
I heard Hisham bin Hakeem bin Hizam reciting Sooratal-Furqan and he recited some words differently from how the Prophet of Allah had taught it to me. I wanted to argue with him, but I was praying. When I finished, I said: Who taught you this recitation? He said: The Messenger of Allah ﷺ. I said: You are lying; by Allah, this is not how the Messenger of Allah ﷺ taught it to you. I took him by the hand and brought him to the Messenger of Allah ﷺ, and said: O Messenger of Allah (ﷺ) , you taught me how to recite Soorat al Furqaan, and I heard this man reciting some words in a way that was not the way you taught them to me. The Messenger of Allah ﷺ said: `Recite it, O. Hisham.” He recited it as he recited it before. The Messenger of Allah ﷺ said: `Thus it was revealed.” Then he said: `Recite it, O Umar.” So I recited it and he said: “Thus it was revealed.” Then the Messenger of Allah ﷺ said: “The Qur'an has been revealed in seven different ways.`
حَدَّثَنَا عَبْدُ الْأَعْلَى بْنُ عَبْدِ الْأَعْلَى، عَنْ مَعْمَرٍ، عَنِ الزُّهْرِيِّ، عَنْ عُرْوَةَ بْنِ الزُّبَيْرِ، عَنِ الْمِسْوَرِ بْنِ مَخْرَمَةَ، أَنَّ عُمَرَ بْنَ الْخَطَّابِ، رَضِيَ اللَّهُ عَنْهُ قَالَ سَمِعْتُ هِشَامَ بْنَ حَكِيمِ بْنِ حِزَامٍ، يَقْرَأُ سُورَةَ الْفُرْقَانِ فَقَرَأَ فِيهَا حُرُوفًا لَمْ يَكُنْ نَبِيُّ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَقْرَأَنِيهَا قَالَ فَأَرَدْتُ أَنْ أُسَاوِرَهُ وَهُوَ فِي الصَّلَاةِ فَلَمَّا فَرَغَ قُلْتُ مَنْ أَقْرَأَكَ هَذِهِ الْقِرَاءَةَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قُلْتُ كَذَبْتَ وَاللَّهِ مَا هَكَذَا أَقْرَأَكَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَأَخَذْتُ بِيَدِهِ أَقُودُهُ فَانْطَلَقْتُ بِهِ إِلَى رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَقُلْتُ يَا رَسُولَ اللَّهِ إِنَّكَ أَقْرَأْتَنِي سُورَةَ الْفُرْقَانِ وَإِنِّي سَمِعْتُ هَذَا يَقْرَأُ فِيهَا حُرُوفًا لَمْ تَكُنْ أَقْرَأْتَنِيهَا فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ اقْرَأْ يَا هِشَامُ فَقَرَأَ كَمَا كَانَ قَرَأَ فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ هَكَذَا أُنْزِلَتْ ثُمَّ قَالَ اقْرَأْ يَا عُمَرُ فَقَرَأْتُ فَقَالَ هَكَذَا أُنْزِلَتْ ثُمَّ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِنَّ الْقُرْآنَ نَزَلَ عَلَى سَبْعَةِ أَحْرُفٍ‏.‏