(23) باب حِفْظِ اللِّسَانِ
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said, "Whoever believes in Allah and the Last Day should talk what is good or keep quiet, and whoever believes in Allah and the Last Day should not hurt (or insult) his neighbor; and whoever believes in Allah and the Last Day, should entertain his guest generously."
Reference: Sahih al-Bukhari 6475
In-book reference: Book 81, Hadith 64
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 76, Hadith 482