A man recited the Quran in the presence of Umar, and Umar corrected him.The man said, "I recited it to the Messenger of Allah ﷺ and he did not correct me."So they went together to the Prophet ﷺ. The man recited before the Prophet ﷺ, and the Prophet ﷺ said to him, "You have recited well."Umar seemed troubled by this, so the Prophet ﷺ said, "Umar, the entire Quran is correct, so long as one does not turn a verse of punishment into one of mercy, or a verse of mercy into one of punishment."
قرأ رجل عند عمر، فغير عليه، فقال: قرأت على رسول الله ﷺ فلم يغير علي، قال: فاجتمعا عند النبي ﷺ، قال: فقرأ الرجل على النبي ﷺ، فقال له: قد أحسنت قال: فكأن عمر وجد من ذلك، فقال النبي ﷺ: يا عمر، إن القرآن كله صواب ما لم يجعل عذاب مغفرة أو مغفرة عذابا.
Ahmad (16366) narrated it from Abdul-Samad, who said, Harb bin Thabit told us, he used to live among Banu Salim, who said, Ishaq bin Abdullah bin Abu Talha told us, from his father, from his grandfather, who said, and then he related it.Its isnad is hasan because of Harb bin Thabit, who is Abu Thabit Minqari, also called Ibn Abu Harb, for his hadith is graded hasan. Ibn Kathir graded it hasan, and Haythami mentioned it in Majma (7/51) and said, "Ahmad narrated it, and its narrators are trustworthy."