Sahih Muslim 511
صحيح مسلم#511SahihAbdullah b. al-Harith reported:I heard Abbas say: I said: Messenger of Allah, verily Abu Talib defended you and helped you; would it be beneficial for him? He (the Holy Prophet) said: Yes; I found him in the lowest part of the Fire and I brought him to the shallow part
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 1:417