No need for Bank Statement for FAMILY VISIT VISA (not unless they changed again the requirement).

Requirement:

*NOC from Sponsor to bring your family on Visit Visa
*Labor Contract (Arabic/English contract)
*Marriage Contract
*Birth Certificate of child
*Copy of Passport of Wife and child
*Company Registration

Bring to Al-Gharaffa Immigration. That was the requirement eversince (i brought all my in-laws, mother, father, sister 5 months ago.) If they change it recently, i am not aware, as my brother-in-law sponsored his sister last month with the same requirement and got approved.