In which document can you find the product acceptance criteria?

Requirements Docs. 

(And Specs.) hahahahahaha

Answer is :- Requirements documentation.

thanks for invitation

I will go for Requirements Docs and spec.

Requirement documentation is my answer.

Requirements documentation

Thank you for invitation & necessary information.

Thank you for the invitation.

I agree with Mr. Ehsan 

____________Requirements documentation___________

--------------  Requirements documentation -----------------

I agree with Mr. Ehsan Banat.

Also gaining agreement with stakeholders and providing a foundation to communicate as well as a solution to satisfy the customer's and business' needs.

think you for invitation my answer is requirments documentation