Hammad bin Salamah (may Allah have mercy on him) said: I asked Hammad bin Abi Sulayman (may Allah have mercy on him) about the inheritance of Magians, and he said: They inherit by one of the two aspects, the aspect that is lawful.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الفرائض / 12510