Excerpt From Blog Post:
Muslims would like infidels to accept two mutually exclusive notions: one, that Islam is a sister religion to Christianity and Judaism because the Quran is based on the Torah and the Gospels; and two, that the Torah and the Gospels that exist today are corruptions of the original holy texts.
Among themselves, Muslims say that the Quran is based on the original, pure, unadulterated "Tawrat" (Torah) and on the original, pure, unadulterated "Injeel" (Gospel), original text portions of which can be found in the Quran today, but original, uncorrupted versions of which are no longer extant.
So when Muslims want Christians or Jews to convert, they point out that Islam is just an extension, a natural progression, a fulfillment of the Bible. Non-Muslims are informed that Muslims believe in the same prophets, Abraham,...