Will preventing someone from walking in front of one while performing salaah be considered amal-e-katheer?

Q: It is written in Behishti Gohar that it is allowed to prevent a person from crossing in front of him while he is praying. However, if 'عمل کثیر' happens, then the prayer will become fasid.

What will be considered عمل کثیر ? What should the musalli do to prevent the person from crossing him?

A: For example, you use both your hands, or walked towards him and your chest turned away from the qiblah.

And Allah Ta'ala (الله تعالى) knows best.

Answered by:

Mufti Ebrahim Salejee (Isipingo Beach)