The text of the Koran as transmitted by Muslim Orthodoxy contains, hidden behind it as a ground layer and considerably scattered throughout it (toget… - Günter Lüling

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The text of the Koran as transmitted by Muslim Orthodoxy contains, hidden behind it as a ground layer and considerably scattered throughout it (together about one-third of the whole Koran text), an originally pre- Islamic Christian text.” Earlier Qur’anic scholars such as Alois Sprenger and Tor Andrae have also identified a Christian substratum.