Riyad as-Salihin

Abu Shuraih Al-Khuza'i (May Allah be pleased with him) reported: The Prophet (ﷺ) said, "He who believes in Allah and the Last Day, let him be kind to his neighbour; and 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 either speak good or remain silent".

[Muslim].