“…Nazhariyah )نظرية( means opinion, view, theory, thought and etc., while alWihdah )الوحدة( means unity and sometimes use the word al-wahdah (fathah on the letter waw). This writing consistently uses the term of al-wihdah (kasrah on the letter waw) (Aladdin, 2012;Halim Tamuri, Yusof Othman, Dakir, Munawar Ismail, & Stapa, 2013;Wekke, & Lubis, 2015). The consistence of using terms is intended to avoid any misinterpretation or misunderstanding.…”