Guaranteed fiduciary contracts and non-guaranteed fiduciary contracts

In jurisprudential publications, some studies have been carried out in regard with the "non-guaranteed" fiduciary contracts whereas the other type has remained underexplored although it has been discussed by some jurisprudents. According to the majority of jurisprudents, most guaranteed fiduciary contracts are invalid except for some special cases such as guaranteed loan. Therefore, they have not explored its nature and effects. However, the minority of jurisprudents who deemed it valid have examined its nature and effects based on their affordability.
Nevertheless, with regard to definitions for obligation of contract as well as definitions for the Sharia and religious tradition these reasons might be flawed. Therefore based on possible invalidity of the reasons as well as the principle of authenticity,
possible to validate the authenticity of guaranteed fiduciary contracts in majority of fiduciary contracts.
Fiduciary contracts can be classified into various categories based on their formation.