Sunan Abi Dawud 5030
سنن أبي داود#5030SahihAbu Hurairah reported the Messenger of Allah (May peace be upon him) as saying:There are five qualities which a Muslim should display to his brother : return of salutation, response to the one who sneezes, acceptance of the invitation, paying sick visit to a patient, and accompanying the funeral
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Zubair Ali ZaiSahih Muslim (2162)
In-book reference: 43:258