Musnad Abu Ya'la al-Mawsili 42:387

Zuhayr narrated to us, Muhammad ibn al-Hasan ibn Abi al-Hasan al-Madani narrated to us, 'Abd al-'Aziz ibn Muhammad narrated to us, from Yazid ibn al-Had, from 'Abd Allah ibn Khabbab, from Abu Sa'id al-Khudri, that he heard the Messenger of Allah (may Allah bless him and grant him peace) when Abu Talib was mentioned in his presence. He said: "Perhaps my intercession will benefit him on the Day of Resurrection, so he will be placed in a shallow depth of the Fire, reaching his ankles, from which his brain will boil."