Jews say all Prophets before them were Jews , Christians say all Prophets before them were Christians . Let me tell you one thing , both if these two sects were originated long after death of Jesus and Moses. In reality Islam is a religion and teaching given by Prophet of Truth , Abraham , and Our prophet Muhammad invited all Christians and Jews to Islam during His life. Those who accepted entered Islam as Momin and those who denied remained non believers
I have one question , What was the religion of Prophet Abraham ?