Mr Khurram is an active investor. He frequently invest in multiple businesses which are run by fund managers. He wants to invest in the real-estate business.

Suggest and explain the suitable mode of financing with the help of a Practical example.

Istisna is allowed in shariah principle whereas gharar is not allowed in Islam. However, both deals with the uncertain nature of business. 

Provide the rationale of accepting Istina mode of financing and rejecting Gharar with the help of an example.