There are several ways to find a stored procedure in the server by name: we can query sys.procedures, syscomments, or information_scema.routines. Respective examples would be:

select * from sys.procedures
where
     name like '%name_of_proc%'

or

select text from syscomments c
     inner join sys.procedures p on p.object_id = c.object_id
where
     p.name like '%name_of_proc%'

or

select * from information_schema.routines
where
    routine_name like '%name_of_proc%'