Jami` at-Tirmidhi 3794
جامع الترمذي#3794SahihNarrated Qatadah:that Anas bin Malik said: "Four gathered the Qur'an during the time of the Messenger of Allah (ﷺ), all of them are from the Ansar: Ubayy bin Ka'b, Mu'adh bin Jabal, Zaid bin Thabit, and Abu Zaid." I said to Anas: "Who is Abu Zaid?" He said: "One of my uncles
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Bashar Awad MaaroufHasan Sahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 49:193