It is reported in certain narratives that only four people from the Ansar tribe had collected the Qur’ān in the lifetime of Prophet Muhammad (sws). In this episode, Dr Shehzad Saleem critically evaluates the questions that arise on the texts of these narratives.
Revisiting the Collection and Transmission History of the Qur’an by Dr Shehzad Saleem

http://www.facebook.com/pages/Dr-Shehzad-Saleems-Video-Talks/309627932402929
http://www.studying-islam.org, http://www.monthly-renaissance.com