What are the verses or hadiths that speak about a Muslim's good treatment of his Muslim brother, and not harming or wounding him?

Allah the Almighty said: "O you who have believed, let not a people ridicule [another] people; perhaps they may be better than them; nor let women ridicule [other] women; perhaps they may be better than them. And do not insult one another and do not call each other by [offensive] nicknames. Wretched is the name of disobedience after [one's] faith. And whoever does not repent - then it is those who are the wrongdoers. O you who have believed, avoid much [negative] assumption. Indeed, some assumption is sin. And do not spy or backbite each other. Would one of you like to eat the flesh of his brother when dead? You would detest it. And fear Allah; indeed, Allah is Accepting of repentance and Merciful." And it was narrated in the Hadith that "Your blood, your wealth, and your honor are sacred to you," and that "The whole of a Muslim is sacred to another Muslim: his blood, his wealth, and his honor." And "Indeed, the worst usury is to unjustly attack the honor of a Muslim," and "Insulting a Muslim is wickedness, and fighting him is disbelief."