I refer to the letter In the beginning there was Proto-Islam .

I have one question that I would like to ask the writer. Please keep in mind that I do not wish to insult or contradict him. I am merely a Muslim student on a quest for knowledge.

I wish to ask about the writer where he obtained information about Proto-Islam splitting into two as outlined in his letter. I have been taught to find the source of all information and as you probably know, not all information on the Internet is reliable.

Thank you.