SQL Server Error: An aggregate may not appear in the WHERE clause

Hi

i have select statement 

SELECT accounts.account,account_name_arabic, accounts.account_name_english, sum(recieptvoucher.reciept_amount) as Debit, sum(recieptvoucher.pay_amount) as Credit,(sum(recieptvoucher.reciept_amount)-sum(recieptvoucher.pay_amount)) as Dues FROM   recieptvoucher INNER JOIN   accounts ON recieptvoucher.account_id = accounts.account where accounts.parent_account=123 group by accounts.account,account_name_arabic, accounts.account_name_english order by accounts.account_name_english

i want to select data where sum(recieptvoucher.reciept_amount)-sum(recieptvoucher.pay_amount))<>0

i tried this statement 

SELECT accounts.account,account_name_arabic, accounts.account_name_english, sum(recieptvoucher.reciept_amount) as Debit, sum(recieptvoucher.pay_amount) as Credit,(sum(recieptvoucher.reciept_amount)-sum(recieptvoucher.pay_amount)) as Dues FROM   recieptvoucher INNER JOIN   accounts ON recieptvoucher.account_id = accounts.account where accounts.parent_account=123 and (sum(recieptvoucher.reciept_amount)-sum(recieptvoucher.pay_amount))<>0 group by accounts.account,account_name_arabic, accounts.account_name_english order by accounts.account_name_english

but it give errror 

Additional information: An aggregate may not appear in the WHERE clause unless it is in a subquery contained in a HAVING clause or a select list, and the column being aggregated is an outer reference.

Thanks