@Caleb Islam does share the gospels and Torah , rather it is one of the 6 articles of faith in Islam, no Muslim is a Muslim if he does not believe in the Torah and Gospel
1 min ago, by Islam
Ideally if NT is included in the Bible then Quran should also be included in it as the FT (Final Testament). Muslims consider convenient to carry only the FT like how many Christians would only carry the NT.
It was just a historical issue that Christians happened to bind their Gospels with the OT.
Muslim didn't , not because they reject it.