Ruling on a Muslim
    taking his inheritance from a kaafir to give it in charity
Question

                I know that a Muslim cannot inherit from a
      non believer, and that a non believer cannot inherit from a Muslim. An uncle living in
      America has died. Aparantly I am entitled to part of the Will, which I have been told is
      considerable. 
      I do not want any of it but I would prefer it goes to Muslim charities than to other non
      believers. Am I allowed to take it and give it away or should I not accept it at all and
      leave it to other relatives.
Praise be to Allah.and peace and blessings be upon the
    one after whom there is no Prophet.
    A Muslim cannot inherit from a kaafir, and a kaafir cannot inherit from a
    Muslim, because of the hadeeth reported in Saheeh al-Bukhaari, in which the Prophet
    (peace and blessings of Allaah be upon him) said: “The Muslim does not inherit from
    the kaafir, and the kaafir does not inherit from the Muslim.” [This applies] even if
    the money were to be used for the purpose of sadaqah, because of the general applicability
    of the hadeeth, and because the Muslim is not commanded to do something haraam in order to
    achieve something prescribed by Islam. And Allaah knows best.
This is what Shaykh ‘Abd al-Azeez ibn Baaz said when I asked him
    about this matter. He said, “He should not ask for his inheritance even if he wants
    to give it away in charity, but if he is given the money, he can dispose of it through any
    charitable channel. And Allaah knows best.”