Sahih al-Bukhari 4481
صحيح البخاري#4481SahihNarrated Ibn `Abbas:`Umar said, "Our best Qur'an reciter is Ubai and our best judge is `Ali; 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 Allah's Messenger (ﷺ) while Allah said: "Whatever verse (Revelations) do We abrogate or cause to be forgotten but We bring a better one or similar to it
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 65:8