Sahih al-Bukhari 3353
صحيح البخاري#3353SahihNarrated Abu Huraira:The people said, "O Allah's Messenger (ﷺ)! Who is the most honorable amongst the people (in Allah's Sight)?" He said, "The most righteous amongst them." They said, "We do not ask you, about this. " He said, "Then Joseph, Allah's Prophet, the son of Allah's Prophet, The son of Allah's Prophet the son of Allah's Khalil (i.e. Abraham)." They said, "We do not want to ask about this," He said' "Then you want to ask about the descent of the Arabs. Those who were the best in the pre-Islamic period of ignorance will be the best in Islam provided they comprehend the religious knowledge
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 60:28