How to Hide a Prompt coming from Bex in Webi Report

Hi BOBJ experts,

I have a Report1 in Webi 4.0 built directly on Bex1.

There is a optional Prompt in Bex which is appearing in Webi Report1 Prompt. User wants this to be hidden.

How can I hide it?

Note: I cannot remove the prompt from Bex as other Webi reports are built on this same bex query. This optional filter needs to be removed only in Report1