Hadith About Manners

The Prophet (peace be upon him) said: "Do not be people without minds of your own, saying that if others treat you well you will treat them well, and that if they do wrong you will do wrong. Instead, accustom yourselves to do good if people do good and not to do wrong if they do evil."
[Tirmidhi, Hadith 1325]

The Prophet (peace be upon him) said: “The excellence of a person’s Islam includes leaving what does not concern him.”
[Tirmidhi]

The Prophet Pbuh said: "The one who believes in Allah and the Day of Judgement should either speak well or observe silence."
[Hadith Sahih Al Bukhari and Sahih Muslim]

"Muslims are brothers to one another. They should neither cheat, lie, nor humiliate each other."
[Tirmidhi]

Ibn Umar reported that Allah's Messenger (may peace be upon him) said: When any one of you is invited to a feast, he should attend it.
[Bukhari Book 8, Number 3337]