SQL Trigger in Stroed procedure - activate trigger after using sp

Suppose I have a very simple stored procedure , which performs a select , but I want to make a trigger that is activated every time I use that stored procedure . Does anyone know exactly how to do something like that?

We could say that the body of my procedure is:

SELECT TOP (1000) [x]
      ,[y]
      ,[z]
      ,[x1]
  FROM tx
where xy = @xy