Musnad Abu Ya'la al-Mawsili 47:1

Narrated to us Mujahid ibn Musa, narrated to us Abu Bakr ibn Ayyash, narrated to us Humayd al-Kindi, from Ubadah ibn Nusayy, from Abu Rayhanah, that the Messenger of Allah (may Allah bless him and grant him peace) said: "Whoever traces his lineage to nine disbelieving forefathers, desiring through them nobility and glory, then he is the tenth of them in the Fire."