(23) باب مِنْ فَضَائِلِ أُبَىِّ بْنِ كَعْبٍ وَجَمَاعَةٍ مِنَ الأَنْصَارِ رَضِيَ اللَّهُ تَعَالَى عَنْهُمْ .
Anas is reported to have said:
Four persons collected the Qur'an during the lifetime of Allah's Messenger (ﷺ) and all of them were Ansar: Mu'adh b. Jabal, Ubayy b. Ka'b, Zaid b. Thabit, Abu Zaid. Qatada said: Anas, who was Abu Zaid? He said: He was one of my uncles.
Reference: Sahih Muslim 2465 a
In-book reference: Book 44, Hadith 170
USC-MSA web (English) reference(deprecated numbering scheme): Book 31, Hadith 6029