Sahih al-Bukhari 6138
صحيح البخاري#6138SahihNarrated Abu Huraira:The Prophet (ﷺ) said, "Whoever believes in Allah and the Last Day, should serve his guest generously; and whoever believes in Allah and the Last Day, should unite the bond of kinship (i.e. keep good relation with his kith and kin); and whoever believes in Allah and the Last Day, should talk what is good or keep quiet
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: 78:165