1. "Whoever believes in Allah and the Last Day, should not hurt his neighbor and whoever believes in Allah and the Last Day, should serve his guest generously and whoever believes in Allah and the Last Day, should speak what is good or keep silent."
[Sahih al-Bukhari 6136]
2. A person is called selfish, not for pursuing his or her own good, but for neglecting his or her neighbor’s.
3. Help your brother’s boat across, and your own will reach the shore.
4. "Worship Allah and associate nothing with Him, and to parents do good, and to relatives, orphans, the needy, the near neighbor, the neighbor farther away, the companion at your side, the traveler, and those whom your right hands possess. Indeed, Allah does not like those who are self-deluding and boastful."