Arabic (Original)
حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ عَنْ سُفْيَانَ حَدَّثَنِي حَبِيبٌ يَعْنِي ابْنَ أَبِي ثَابِتٍ عَنْ سَعِيدِ بْنِ جُبَيْرٍ عَنْ ابْنِ عَبَّاسٍ رَضِيَ اللَّهُ عَنْهُمَا قَالَ قَالَ عُمَرُ عَلِيٌّ أَقْضَانَا وَأُبَيٌّ أَقْرَؤُنَا وَإِنَّا لَنَدَعُ مِنْ قَوْلِ أُبَيٍّ وَأُبَيٌّ يَقُولُ أَخَذْتُ مِنْ فَمِ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَلَا أَدَعُهُ وَاللَّهُ يَقُولُ { مَا نَنْسَخْ مِنْ آيَةٍ أَوْ نُنْسِهَا }.
English Translation
Yahya ibn Sa'id told us, from Sufyan: Habib -- that is, Ibn Abi Thabit -- told me, from Sa'id ibn Jubayr, from Ibn 'Abbas, may Allah be pleased with them both, who said: 'Umar said: "'Ali is the most learned among us in judgment, and Ubayy is the best reciter among us, and we do leave some of what Ubayy says, while Ubayy says: 'I took it from the mouth of the Messenger of Allah, peace and blessings be upon him, and I will not abandon it,' while Allah says: 'Whatever verse We abrogate or cause to be forgotten...'"