Go look it up bro, I'm not gonna take you through the Quran.
My friends speak Arabic as a native tongue because they're from there bruh.
Like born and raised.
You don't have to believe me, just go ask a Muslim imam if there's a doctrine to spread Islam.
A good imam will tell you to do it peacefully but that it's still your duty.
That's why Sharia Law practicing Muslims will give you the option to convert.
If you don't convert they charge you a tax.
If you don't pay the tax they kill you, sometimes even if you do pay the tax.