Her husband drinks alcohol – is she sinning by living with him?
Question

                What should a muslim wife do if her husband drinks alcohol.  She has tried to make him stop, but he refuses.  The only thing he has managed to do is lessen the frequency of his drinking.  She is very observant in practicing the religion and fears that she may suffer punishment for her husband's behavior.  At the same time, she does love her husband and wants to preserve the relationship.  What should she do in this case?
Praise be to Allah.Firstly, 
          we advise this husband to repent to Allaah from drinking alcohol, because 
          drinking alcohol is haraam according to the Book of Allaah, the Sunnah 
          of His Messenger  (peace and blessings 
          of Allaah be upon him) and the consensus of the Muslims. Allaah says 
          (interpretation of the meaning): 
“O 
          you who believe! Intoxicants (all kinds of alcoholic drinks), and gambling, 
          and Al Ansaab [stone altars for offering sacrifices to idols etc.], 
          and Al Azlaam (arrows for seeking luck or decision) are an abomination 
          of Shaytaan’s (Satan’s) handiwork. So avoid (strictly all) that (abomination) 
          in order that you may be successful. 
Shaytaan 
          (Satan) wants only to excite enmity and hatred between you with intoxicants 
          (alcoholic drinks) and gambling, and hinder you from the remembrance 
          of Allaah and from As‑Salaah (the prayer). So, will you not then 
          abstain? 
And 
          obey Allaah and the Messenger (Muhammad), and beware (of even coming 
          near to drinking or gambling or Al‑Ansaab, or Al‑Azlaam) 
          and fear Allaah. Then if you turn away, you should know that it is Our 
          Messenger’s duty to convey (the Message) in the clearest way” [al-Maa'idah 
          5:90-92]
It 
          was narrated that the Prophet  (peace 
          and blessings of Allaah be upon him) said: “Every intoxicant is liquor 
          and every liquor is haraam.” (Narrated by Muslim, al-Ashribah 
          3735)  
The scholars 
          are unanimously agreed, with no dispute on this matter. Some of the 
          scholars even considered the prohibition of alcohol to be one of the 
          most well known teachings of Islam (ignorance of which is inexcusable). 
          So our advice to him is that he should give up drinking alcohol, and 
          be content with [?] that which Allaah has permitted to him of good drinks, 
          and not seek that which Allaah has forbidden. Alcohol is the mother 
          of evil and the key to all evil. Allaah has issued a stern warning to 
          those who drink it and do not repent from that. It was narrated from 
          Jaabir that the Messenger of Allaah  
          (peace and blessings of Allaah be upon him) said:  “Allaah has 
          made a covenant to those who drink alcohol, that He will make them drink 
          teenat al-khabaal.” They said, “O Messenger of Allaah, what is 
          teenat al-khabaal?” He said, “The sweat of the people of Hell,” 
          or, “The juice of the people of Hell.” (Narrated by Muslim, al-Ashribah, 
          3732)  
It is easy to give it up if one is sincere 
          and determined, and seeks the help of Allaah, may He be exalted.
With regard to yourself, there is no sin 
          on you if your husband drinks alcohol, because a person will not be 
          brought to account for the sins of another. Allaah says (interpretation 
          of the meaning):
“And 
          no bearer of burdens shall bear another’s burden”[Faatir 35:18]
Rather, 
          you will be rewarded for your sincere advice to your husband. Your living 
          with him is not haraam, because drinking alcohol does not make him a 
          kaafir. So keep on calling him, advising him and making du’aa’ for him, 
          and may Allaah cause him to repent. If your keeping away from him in 
          bed will serve the purpose of deterring him and making give up alcohol, 
          then it is permissible, but if it will not achieve anything, then do 
          not do it. We ask Allaah to guide us all and give us strength. For 
          more information see the fatwa of Shaykh Ibn ‘Uthaymeen, 2/890