Praise be to Allaah.
put this question to Shaykh Muhammad ibn Saalih al-‘Uthaymeen, may
Allaah preserve him, who answered as follows:
he is going to give it to you on the basis that it is diyah (blood money),
then you should not take it, because he is a kaafir and you are a Muslim;
a Muslim cannot inherit from a kaafir, and diyah is a kind of inheritance.
If he is going to give it to you just to make you feel better (as a gift),
then there is nothing wrong with taking it. And Allaah knows best.
Sheikh Muhammed Salih Al-Munajjid