Qathi, Abu Ammar Yasir الرياء = Riyaa the hidden shirk / by Abu Ammar Yasir al-Qathi ; edited by Abu Ameenah Bilal Philips - Sharjah, U.A.E. : Dar al-Fatah,, 1996 - 103 p. ; 21 cm Includes bibliographical references (p. 101-103). Subjects--Topical Terms: Religious aspects -- Islam