1)Change of sponsorship Form, typed and sign by wife employer
2) Signature employer should be verified from Govn Immigration.
3)Wife Original pastport and also a copy with first entry page.
4) Wife original ID
5) Wife 2 recent photo
6) NOC from wife employer
7) Marriage Cert (translated to Arabic)
8) Hubby passport and ID (both original and copy)
9) Hubby qualification cetificates copy (as to why Immigration need those, I have no idea)

Hope this helps...