Musannaf Ibn Abi Shayba 18:131

Abu Bakr narrated to us, he said: Abbad bin al-Awwam narrated to us, from Hajjaj and Umar bin Amir, from Makhul, from Zayd bin Thabit, who said regarding the three parts of the nose: "The blood money (diyah) is due for them, and for each one of them is one-third of the blood money."