Ma'bad al-Juhani said: I saw the wife of Sayyiduna Hudhayfah (may Allah be pleased with him), (and she was) a Magian. This is not established; rather, what is correct is that Sayyiduna Hudhayfah (may Allah be pleased with him) married a Jewish woman.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13988