Amr bin As heard a man reciting a verse from the Quran and asked him, "Who taught you to recite it that way?"The man replied, "The Messenger of Allah ﷺ."Amr said, "But the Messenger of Allah taught me to recite it differently!"So they went together to the Messenger of Allah ﷺ, and one of them said, "Messenger of Allah, such-and-such a verse," and then recited it.The Messenger of Allah ﷺ said, "This is how it was revealed."Then the other said, "Messenger of Allah," and recited it to the Messenger of Allah ﷺ in his way, saying, "Is it not like this, Messenger of Allah?"He replied, "This is how it was revealed."Then the Messenger of Allah ﷺ said, "This Quran was revealed in seven modes, so whichever of them you recite, you have recited correctly. Do not dispute over it, for disputing over it is disbelief," or he said, "a verse of disbelief."
سمع عمرو بن العاص رجلا يقرأ آية من القرآن، فقال: من أقرأكها؟ قال: رسول الله ﷺ، قال: فقد أقرأنيها رسول الله على غير هذا! فذهبا إلى رسول الله ﷺ، فقال أحدهما: يا رسول الله، آية كذا وكذا ثم قرأها، فقال رسول الله ﷺ: هكذا أنزلت. فقال الآخر: يا رسول الله، فقرأها على رسول الله ﷺ وقال: أليس هكذا يا رسول الله؟ قال: هكذا أنزلت. فقال رسول الله ﷺ: إن هذا القرآن أنزل على سبعة أحرف، فأي ذلك قرأتم فقد أصبتم، ولا تماروا فيه، فإن المراء فيه كفر. أو آية الكفر.
Ahmad (17821) reported it from Abu Salama Khuzai, who said, "Abdullah bin Jafar bin Abdul-Rahman bin Miswar bin Makhrama told us," who said, "Yazid bin Usama bin Had told me," from Busr bin Saeed, from Abu Qays, the freed slave of Amr bin As, who mentioned it.Its isnad is sahih. It is a connected hadith, even though its form appears to be that of a mursal narration, for Ahmad (17819) also reported it through another route from Yazid bin Abdullah bin Usama bin Had, from Busr bin Saeed, from Abu Qays, the freed slave of Amr bin As, from Amr bin As, mentioning something similar.