You are talking complete nonsense. The Bulgarians came to this territory long before the Islam was 'created' by Muhamad in the first half of the 7th century AD. The Slavs inhabited Bulgaria since the end of the 5th century. The religion of both tribes (Bulgarians and Slavs) was pagan until th 9th century AD when Bulgaria converted to Christianity. The first muslims in Bulgaria date from the 15th century AD. All these facts are indisputable and easily checkable.
You are talking complete