How to pass SSIS variables in ODBC SQLCommand expression?

I'm trying to load incremental data from ODBC server to SQL server using common table expression. When running the query in the Dbeabver application, is executed correctly:

with test as
(
    SELECT userid,sum(goldbalance)
    FROM Server.events_live
    where eventTimestamp>=DATE '2016-01-01' + INTERVAL '-100 day'
    group by userid
    order by sum(goldbalance) desc)
)
select * from test

when running it from an sql command expression of the ODBC source, it fails due to wrong syntax. It looks as follow:

with test as
(
    SELECT userid,sum(goldbalance)
    FROM deltadna.events_live
    where eventTimestamp>=DATE '"+@[User::datestring]+"' + INTERVAL '-100 day'
    group by userid
    order by sum(goldbalance) desc)
)
select * from test"

the datestring variable is getting the server date and convert it to string in the format yyyy-mm-dd. I'm usually use this method to pull data from ADO.NET and it works properly.

Is there any other way to pull incremental data from ODBC server using ssis variables?