We actually agree on the history, and that's a good place to start. Yes, Jesus lived in Judea, and yes, he came centuries before Muhammad. But here's the thing. If being a Muslim requires living at a certain time in a certain place, then Abraham and Moses weren't either, yet the Quran calls them muslims too. The word describes surrender to God, not a calendar date. Asking for proof of how Jesus prayed kind of proves my point. His whole life was one long act of submission. That's the definition.