Hadith 705
Abu Hurairah (May Allah be pleased with him) reported:
عن أبي هريرة رضي الله عنه أن النبي صلى الله عليه وسلم قال: " من كان يؤمن بالله واليوم الآخر فليكرم ضيفه، ومن كان يؤمن بالله واليوم الآخر فليصل رحمه، ومن كان يؤمن بالله واليوم الآخر فليقل خيراً أو ليصمت” ((متفق عليه)) .
The Prophet (ﷺ) said, "He who believes in Allah and the Last Day, let him show hospitality to his guest; and he who believes in Allah and the Last Day, let him maintain good relation with kins; and he who believes in Allah and the Last Day, let him speak good or remain silent." [Al-Bukhari and Muslim].
In plain words
Whoever believes in Allah and the Last Day should honor his guest, keep good ties with relatives, and either speak well or stay silent. Faith shows itself in how we treat others and what we say.
Reference : Riyad as-Salihin 705 In-book reference : Book 1, Hadith 26