Abdul-Rahman bin Abdul-Qari reported,

Umar bin Khattab said, "I heard Hisham bin Hakeem bin Hizam reciting Surah al-Furqan in a way different from how I recited it. The Messenger of Allah ﷺ himself had taught me the recitation, so I almost rushed at him on the spot. But I waited until he finished, then I seized him by his cloak and brought him to the Messenger of Allah ﷺ."Umar continued, "I said, 'Messenger of Allah, I heard this man reciting Surah al-Furqan in a way different from how you taught it to me!'The Messenger of Allah ﷺ said, 'Let him go.'Then he said, 'Recite, Hisham.'So Hisham recited it the way I had heard him recite.The Messenger of Allah ﷺ said, 'It was revealed this way.'Then he said to me, 'Recite.'So I recited it.He said, 'It was revealed this way. This Quran has been revealed in seven modes, so recite whatever is easy from it.'"

Azami 11750

Sahih

عن عبد الرحمن بن عبد القاري، أنه قال

سمعت عمر بن الخطاب يقول: سمعت هشام بن حكيم بن حزام يقرأ الفرقان على غير ما أقرؤها. وكان رسول الله ﷺ أقرأنيها فكدت أن أعجل عليه. ثم أمهلته حتى انصرف. ثم لبته بردائه، فجئت به رسول الله ﷺ، فقلت: يا رسول الله، إني سمعت هذا يقرأ سورة الفرقان على غير ما أقرأتنيها! فقال رسول الله ﷺ: أرسله. ثم قال: اقرأ يا هشام. فقرأ القراءة التي سمعته يقرأ. فقال رسول الله ﷺ: هكذا أنزلت. ثم قال لي: اقرأ. فقرأتها. فقال: هكذا أنزلت، إن هذا القرآن أنزل على سبعة أحرف، فاقرأوا ما تيسر منه.

الأعظمي 11750صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Sciences of the Quran and its virtues
Chapter
Sciences of the Quran
Section
Quran was revealed in seven modes and their meaning
Numbering
Jami al-Kamil 11750 (2nd edition)
Azami 11750