Righteous islamic community based on Quran and Sunnah are called Ahl Al-Sunna wa l-Jamaa Every other thoughts on islamic way of life is necessarily in error. Hence Ahl al Sunnah wal Jamaa means the community of muslims following the real islam. One must turn back to Ahl al Sunna wa l-Jamaa for the salvation of one's soul. Consequently, ones faith in islam must conform with that of Ahl Al-Sunna wa l-Jamaa. In the following links faith of Ahl Al-Sunna wa l-Jamaa is explained.
Islamic faith: Al-Ash'ary
faith: Al Ghazali