A non-Muslim wife who is left behind by a Muslim husband is not an heir, but she is entitled to a mandatory will from her husband’s inheritance as much as a portion of the wife’s inheritance.
Supreme Court Decision No. 16 K/AG/2010 dated April 30, 2010
The term mandatory will can be seen in Article 209 paragraphs (1) and (2) of the Compilation of Islamic Law.
Regards,
Fredrik J. Pinakunary