Ibrahim (may Allah have mercy on him) said: If a Muslim is among a polytheist people and there is a treaty between them and the Muslims, and one of them is killed, then his blood money should be given to his people, and his inheritance should go to the Muslims.
Hadith Referenceسنن سعید بن منصور / كتاب الجهاد / 4004
Hadith Takhrij«أخرجه سعيد بن منصور فى «سننه» ترقيم الدرالسلفية برقم:، 664، 2828، وابن أبى شيبة فى «مصنفه» برقم: 28580، 34116»