I'm a muslim and I can assure you there's no such thing.
In Quran it clearly says "there's no pressure in religion", period.
If there are so called muslims who thinks what you said is true, they are not bounded by the book therefore they can't be called muslims.
.....In the beginning of Islam, mohammed and ILK sure lopped off the heads of millions of people 'who did NOT want to become muslimes'.
...also, what was mohammed and his close henchmen doing having ALL those very young girls in their beds???
Ps:....Go readUP your history.
Forever and Ever