That he heard the Prophet (ﷺ) when somebody mentioned his uncle (i.e. Abu Talib), saying, "Perhaps my intercession will be helpful to him on the Day of Resurrection so that he may be put in a shallow fire reaching only up to his ankles. His brain will boil from it." Narrated Yazid:

(as above, Hadith 224) using the words: "will make his brain boil."
Sahih al-Bukhari Book 63, Hadith 110
← Previous Hadith When Abu Talib was in his death bed, the Prophet (ﷺ) went to him while Abu Jahl was sitting beside him. The Prophet (ﷺ) said, "O my uncle! Say: None has the right to be worshipped except Allah, an expression I will defend your case with, before Allah." Abu Jahl and `Abdullah bin Umaiya said, "O Abu Talib! Will you leave the religion of `Abdul Muttalib?" So they kept on saying this to him so that the last statement he said to them (before he died) was: "I am on the religion of `Abdul Muttalib." Then the Prophet said, " I will keep on asking for Allah's Forgiveness for you unless I am forbidden to do so." Then the following Verse was revealed:-- "It is not fitting for the Prophet (ﷺ) and the believers to ask Allah's Forgiveness for the pagans, even if they were their near relatives, after it has become clear to them that they are the dwellers of the (Hell) Fire." (9.113) The other Verse was also revealed:-- "(O Prophet!) Verily, you guide not whom you like, but Allah guides whom He will ......." (28.56)

Sahih al-Bukhari Book 63, Hadith 109 Next Hadith → That he heard Allah's Messenger (ﷺ) saying, "When the people of Quraish did not believe me (i.e. the story of my Night Journey), I stood up in Al-Hijr and Allah displayed Jerusalem in front of me, and I began describing it to them while I was looking at it."

Sahih al-Bukhari Book 63, Hadith 111