Ruling on taking ribaa from deposit accounts in kaafir banks
Question

                My question is regarding to someone's problem who is very nearly person of mine.The question is that the country where I am from there are some companies they have some monthly income schemes. In which they deposite money as fixed asset and on that  they gave monthly profit and there is no change in the deposited amount. I like to know that in the light of Islam is this way of having income is Halal or not and can a widow use this income to support herself and family expenses?
Praise be to Allah.A similar question was sent to
      the Standing Committee for Academic Research and Issuing Fatwas (al-Lajnah
      al-Daa’imah li’l-Buhooth al-‘Ilmiyyah wa’l-Iftaa’). The text
      of the question was as follows:
Al-Ummah
      magazine has published a fatwa on financial matters conducted in western
      countries and in daar al-harb [non-Muslim countries which are in a
      state of hostility against Islam]. Imaam Abu Haneefah stated that it was
      permissible to take riba from al-harbiyeen in daar al-harb,
      and that every contract or transaction which was beneficialto Muslims was valid, so long as it was based on mutual consent and
      involved no deception or betrayal. If this is true, it would be helpful to
      some Muslims in France, because the donations that come to us stay in the
      bank for months before the time comes to use them, and no one benefits
      from the accumulating interest apart from the bank with which we are
      dealing. If this fatwa is correct we can make use of the interest paid to
      us on our money in daar al-harb, and at least give it to the poor and
      needy, if no one else. And our intention is for the sake of Allaah.
 The Standing
      Committee, under the leadership of Shaykh ‘Abd al-‘Azeez ibn Baaz (may
      Allaah have mercy on him) replied as follows:
 Firstly, financial
      transactions and mutual exchanges of benefits between us and the kuffaar
      are valid so long as they meet the conditions of transactions set out in
      Islamic sharee’ah.
 Secondly, dealing in
      ribaa is absolutely haraam, whether it is among Muslims or between Muslims
      and kaafirs, whether they are harbiyeen or not. And Allaah knows
      best.