A Muslim Convert Once Before

بِسۡمِ ٱللهِ ٱلرَّحۡمَـٰنِ ٱلرَّحِيمِ   The following is my answer to a Quora question: “ Can a Sunni Muslim girl marry a Buhrah Muslim boy without converting? ”   You are both Muslims.   What do you want to convert to?   Scientology?   Conversion is only required when one of the parties is not a Muslim.   Within the context of orthodox religion, the Ahmadiyyah , the Wahhabis, and other ghuluw , extreme, sects, with beliefs that are far out of what we generally agree upon as the foundational creed of Islam would be treated as non-Muslims, and have to convert.   Generally, groups that are banned from the haj are not considered to be Muslims.   Once upon a time, that included the Wahhabi sect for more than a hundred years.   After the British helped them conquer the Haramayn, no one can tell them that the old fatawa are still valid, so they have become an exception.