Musnad Ahmad #266

`Umar bin al-Khattab said: I heard Hisham bin Hakeem reciting Sooratul-Furqan in prayer in a manner other than I recited it, and the Messenger of Allah (ﷺ) had taught it to me. I caught him by his garment and brought him to the Messenger of Allah (ﷺ) , and said: O Messenger of Allah (ﷺ), I heard this man reciting Sooratul Furqan in a manner other than you taught it to me. The Messenger of Allah (ﷺ) said: `Recite it.” He recited it in the manner in which I had heard him recite, and the Messenger of Allah (ﷺ) said: `Thus it was revealed.” Then he said to me: `Recite it.” So I recited it and he said: “Thus it was revealed. This Qur`an has been revealed in seven modes of recitation, so recite whatever is easy for you.` It was narrated that al Miswar bin Makhramah and `Abdur-Rahman bin Abdul-Qari heard ‘Umar say: I passed by Hisham bin Hakeem bin Hizam when he was reciting Sooratul Furqan... and he mentioned a similar hadeeth.