People of two different religions do not inherit from one another
Good hadithعن عبد الله بن عمرو رضي الله عنهما قال: قال رسول الله صلى الله عليه وسلم : «لا يَتَوَارَثُ أهل مِلَّتَيْنِ شتّى».
‘Abdullāh ibn ‘Amr ibn al-‘Ās (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: "People of two different religions do not inherit from one another."
Explanation
This Hadīth indicates that people of different religions do not inherit from one another. For example, a Muslim does not inherit from a Jew or a Christian, and vice versa. That is due to the lack of one of the conditions of lawful inheritance: following the same religion. If the religion is different, inheritance is not allowed; that is the view of the majority of the Muslim jurists.
Source · Narrated by Ibn Majah - Narrated by Abu Daoud - Narrated by Ahmad
From the Hadith Encyclopedia (hadeethenc.com).