مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2621
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn 'Abbas (رضي الله عنه) that the Messenger of Allah (ﷺ) said: “The least severely punished among the people of Hell will be Abu Talib; he will wear two sandals of fire because of which his brain will boil.”
Musnad Ahmad 2636Its isnad is saheeh, Muslim (212)]