He's referencing verses in the Quran that refer to war; the context is that Archangel Gabriel instructed Muhammed in the ways of the truth to share to the people, and he was being resisted—even violently. As my own experiences with speaking with Archangel Gabriel, I can tell you that it isn't easy to share this purpose with others; I've been accused, abused, lied to, humiliated, and asked to be someone and something different than what I am.

In other words, Muhammed's soul was being sacrificed by the Meccans, and various verses, not unlike you find in the Bible, describe orders to kill any of the pagans, idolaters, atheists, etc. who were rejecting the Holy Spirit's sovereignty in the war.