Sahih Muslim 4513
صحيح مسلم#4513SahihAbd Shuraib al-Adawi reported:My eare listened and my eye saw when Allah's Messenger (ﷺ) spoke and said: He who believes In Allah and the eireafter should show respect to the guest even with utmost kindness and courtesy. They said: Messenger of Allah, what is this utmost kindness and courtesy? He replied: It is for a day and a night. Hospitality extends for three days, and what is beyond that is a Sadaqa for him; and he who believes in Allah and the Hereafter should say something 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 Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 31:15