@Indignation

I never read the book, I just saw some person talking about the Quran originally been written in Syriac in other videos that were not very informative for the amount of time I watched and saw the book listed when I did search for something like

The Quran was written in Syriac

I am not endorsing the book

I just wanted some source to quote to say the Quran was written in Syriac

They did not mention anything about the Church of the East in the book description or videos

@Indignation

But Muhammad had connections with people from the Church of the East and a lot of the sayings of Muhammad line up with the objections at least some branches of the Church of the East have to the title of Mary as mother of God

@Indignation

I think this claim that the Quran was written in Syriac and came from Church lectionaries would make sense based on what I heard about the Church of the East, Nestor and Cyril of Alexander

@Indignation

Also Syriac was the oldest language that the New Testament was translated from Greek into from what I remember hearing

I believe that The Nestle Allen New Testament has Syriac footnotes for manuscript variants