Narrated Anas bin Malik: When the Prophet died, none had collected the Qur'an but four persons;: Abu Ad-Darda'. Mu`adh bin Jabal, Zaid bin Thabit and Abu Zaid. We were the inheritor (of Abu Zaid) as he had no offspring .

Narrated Qatada: Anas said, "The Qur'an was collected in the lifetime of the Prophet by four (men), all of whom were from the Ansar: Ubai, Mu`adh bin Jabal, Abu Zaid and Zaid bin Thabit." I asked Anas, "Who is Abu Zaid?" He said, "One of my uncles."