Musannaf Ibn Abi Shayba 18:435

Abu Bakr narrated to us, he said: Abu Usama narrated to us, he said: 'Abd al-Wahid ibn Ziyad narrated to us, from Hajjaj, from Makhul, from Zayd, regarding the hernia (al-fatq): "The blood money (diyah) is [due]."