31. Who were the Kaathibe-Wahi (copyists of the revelations) of the Qur'an?

QUESTION-  Who were the Kaathibe-Wahi (copyists of the revelations) of the Qur'an?

ANSWER-  Abu Bakr (Radhiallahu Anhu), Usman (Radhiallahu Anhu), Ali (Radhiallahu Anhu), Zaid Bin Harith (Radhiallahu Anhu) And Abdullah bin Masood (Radhiallahu Anhu)