His wife demands clothes and gold like her friends have
Question

                My wife attends parties and sees what the other women are wearing, then she demands clothes and gold like those she has seen. My monthly income is not like that of the husbands of those women. What should I do with her?
Praise be to Allah. 
          There is an important hadeeth from the Prophet 
          
          (peace and blessings of Allaah be upon him) which explains this matter 
          and says that this is one of the causes of doom. There follows the text 
          of this hadeeth so that you may advise your wife thereby. Imaam Ibn 
          Khuzaymah narrated in Kitaab al-Tawheed that the Prophet 
          
          (peace and blessings of Allaah be upon him) delivered a khutbah (sermon) 
          and spoke at length., in which he mentioned matters of this world and 
          the Hereafter. He said that the first thing that led to the destruction 
          of the Children of Israel was when the wife of a poor man would make 
          demands for clothes and jewellery just as the wife of a rich man would 
          demand. 
 
          Al-Silsilah al-Saheehah 
          by al-Albaani, no. 591.
 
           He said, this is a saheeh isnaad according to the 
          conditions of Muslim.
 
           You must remind her of the importance of being 
          content and of asceticism in this world. Promise her that that you will 
          give her more when Allaah gives you more, and remind her of what Allaah 
          says (interpretation of the meaning):
 
          “Let the rich man spend 
          according to his means; and the man whose resources are restricted, 
          let him spend according to what Allaah has given him. Allaah puts no 
          burden on any person beyond what He has given him. Allaah will grant 
          after hardship, ease” [al-Talaaq 65:7]