Muslims have long believed that Paul purposefully corrupted the original revealed teachings of Jesus, through the introduction of such elements as paganism, the making of Christianity into a theology of the cross, and introducing original sin and the need for redemption.

^^ From the Wiki article (Muslim views section).

I don’t have time to skim or read the entire article; it’s much too long. And I didn’t know that these views on the individual even existed (atheist). What should I look for if I want to learn more without getting heavily invested? Can you please summarize where you’re coming from with this comment and give me some background? This sounds pretty interesting as a topic.