قَوْلُهُ تَعَالَى: {مَا نَنْسَخْ مِنْ آيَةٍ أَوْ نُنْسِهَا} [البقرة: 106]
ʿUmar said, "Our best Qur'an reciter is Ubai and our best judge is ʿAli; and in spite of this, we leave some of the statements of Ubai because Ubai says, 'I do not leave anything that I have heard from Messenger of Allah ﷺ while Allah: "Whatever verse (Revelations) do We abrogate or cause to be forgotten but We bring a better one or similar to it." (2.106) (Using translation from Bukhārī 4481)
قَالَ عُمَرُ أَقْرَؤُنَا أُبَيٌّ وَأَقْضَانَا عَلِيٌّ وَإِنَّا لَنَدَعُ مِنْ قَوْلِ أُبَيٍّ وَذَلِكَ أَنَّهُ يَقُولُ لَا أَدَعُ شَيْئًا سَمِعْتُهُ مِنْ رَسُولِ اللهِ ﷺ وَقَدْ قَالَ اللهُ ﷻ «مَا نَنْسَخْ مِنْ آيَةٍ أَوْ نَنْسَأْهَا نَأْتِ بِخَيْرٍ مِنْهَا أَوْ مَثَلِهَا»