question #3 Sahih al-Bukhari 3810, Book 63, Hadith 35 : How is the familial relationship between Anas and Abu Zaid described?

Anas said, “The Qur’an was collected in the lifetime of the Prophet (ﷺ) 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.”