This study is consider very important (Altaklief Balmhal) which must knew to deal with it and benefit؛ and this subject shows and under standing what charging of God which must every body to do it.
When I research of numerous books I found many expression to relationship with this project for examples ( expression Almamtanaa and Alshek).
When we looked to these expression would found many different between other specially when we read it.
For these result I decided to writing this subject for introduce these forms and I was writing many branches for this subject and I gave numerous evidences about these branches specially (evidences form Alfakah).