What is the requirments needed if my husband in...

If your question is about your husband holding German citizenship, and he wants to obtain residency for his wife, find the following information:
The husband must review the Immigration Department in Germany and submit an application in order to obtain a residence permit for the wife, provided that the following documents are attached to his application:
A copy of the wife's passport.
Marriage contract.
A copy of the housing tenancy or ownership contract.
A certificate from the work side with the husband's salary inside Germany
A copy of the husband's passport.
The Immigration Department will examine the application and issue a decision to accept or reject the application