All 51 transmission lines of traditions that report the compilation of the Qur’an under Abu Bakr or Uthman, found in 12 sources before 930 CE, intersect in a single transmitter: Ibn Shihab al-Zuhri (677-742 CE).

Source: Harald Motzki, “The Collection of the Qur’ān. A Reconsideration of Western Views in Light of Recent Methodological Developments,” Der Islam 78:1 (2001): 1-34.