Manmade Laws vs. Shari‘ah: Ruling by Laws Other Than What Allah Revealed by Dr. ‘Abdur-Rahmân ibn Sâlih al-Mahmood This book discusses the knowledge that faith is composed of both belief and action, and that it may increase and decrease; sin does not necessarily constitute unbelief, but there are some sins which do put a person beyond the pale of Islam. Then, it examines the position of ruling by something other than that which Allah has revealed.