You can't consider someone a disbeliever based on this... This is insane. I don't have to do research to know that you can't consider someone a disbeliever based on this... You are so obsessed with making everybody a disbeliever... This is bidah, because this is not part of the sunnah of the Prophet (sallahu alayhi wa salam) to make everybody who has affirm the shahadah a disbeliever.... This is not mentioned in any of the basic text on aqida...It is not even mentioned in the Jawharat tawhid... or Aqida Nasafi or Aqidah Tahawi, or Fiqh Akbar... So how can it be required that everyone believes this??? I can assure you this is not something that is necessarily known to be part of the religion.... This is the first time I have ever heard of it... And I have studied several texts in aqidah.