In this series, Dr. Saleh as-Saleh explains a book authored by Sheikh Al-Islam Muhammad ibn Abdul-Wahhab entitled, "The Three Fundamental Principles". This book discusses the three questions which the person will be asked in the grave. In his explanation, Dr. Saleh As-Saleh depends on explanations of Sh. Ibn Baaz, Sh. Ibn Utheimeen, Sh. Saaleh Al-Fawzan and Sh. Abdullah Al-Fawzan (may Allaah reward them all).