One of the users of this website – may Allah reward them – has pointed out an error on page 26 of the Usool us Sunnah Q and A.
The founder of the Shee’ah sect should read ‘Abdullah ibn Saba’ (and not ‘Abdullah ibn Salaam, as stated in the Q and A).
Jazakum Allahu khairan.
Nawawi's 40 Quizzes
Islam: The Study Guides 