Sayyiduna Miswar bin Yazid (may Allah be pleased with him) narrates: I was present with the Prophet (peace and blessings of Allah be upon him) when he left out a verse while reciting during prayer. (After the prayer) a man said: O Messenger of Allah (peace and blessings of Allah be upon him)! You left out a verse. The Prophet (peace and blessings of Allah be upon him) said: Why did you not remind me? He replied: I thought perhaps it had been abrogated. The Prophet (peace and blessings of Allah be upon him) said: It has not been abrogated.
Hadith Referenceصحیح ابن حبان / كتاب الصلاة / 2241
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيحسن - انظر ما قبله.فضيلة الشيخ العلّامة شُعيب الأرناؤوطهو مكرر ما قبله.