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.`