In an easy style accessible to all, this work brings together all the questions concerning the performance of worship ('ibâdât): ritual prayers (as-salât), zakât, fasting (as-sawm) and pilgrimage (al -hajj).The author has referred only to reliable and reliable sources; the practical rules presented are those which are the subject of a total or majority consensus of jurisconsults. As it is designed, this book is intended to be the manual for every Muslim who seeks to understand their religion well and practice their worship ('ibâdât) without difficulty. This work is therefore necessary for every Muslim household whose members want to worship God, armed with faith and knowledge. It is useful for those who want to distinguish between good and bad practice, complete worship from incomplete. The author has set himself the task of presenting, in a very educational manner, all the prescriptions of the Muslim religion so that religious knowledge is now within everyone's reach.