First you should obtain No objection letter from sponsor that company doesn't have any objection to sponsor your husband. Secondly, you need a salary certificate from the sponsor of your company. If your salary is sufficient to sponsor your husband then you should submit a marriage certificate and passport copy of your husband and photos along with your passport copy, I.D Card and a form to fill all details. In case your passport has not included your husband's name or not showing the status of your marriage you have to approach your embassy to add your husband's name for that you should show the marriage certificate etc. After you completed these all procedures you can directly go to the immigration department and explain to them. Better you can take yhour mandoop or anyone who knows arabic better. Or if you want to know more details you can approach the Human rights people's office at Al Asiri (Near to flyover). They will guide you what to do.