Musannaf Ibn Abi Shayba 18:730

Abu Bakr narrated to us, he said: Waki’ narrated to us, he said: Sufyan narrated to us, from Abu al-Miqdam, from Sa’id ibn al-Musayyib, from Umar ibn al-Khattab, who said: The blood money (diyah) of the Jew and the Christian is four thousand. And the blood money of the Magian is eight hundred.