Islam teaches about neighbors relationship, both among fellow Muslims or non-Muslim, because in that case there is benefit that will make people like one body. The rights of one neighbor to another neighbor has been determined by Islam, i.e :
Prophet Muhammad SAW (peace be upon him) said "The best friend (according to God) is the best person to his other friend, and the best neighbor (according to God) is the best person to his other neighbor)" (Hadeeth Bukhori).
Allah The Almighty said in The Holly Qur'an, Surah An-Nisaa, verse 36 : "Worship Allah and join none with Him in worship, and do good to parents, kinsfolk, orphans, Al-Masaakin (the poor), the neighbor who is near of kin, the neighbor who is stranger, the companion by your side, the wayfarer (you meet), and those (slaves) whom your right hands posses. Verily, Allah does not like such as are proud and boastful".
- Saying hello to him (greeting or salaam)
- Visiting him if he is sick.
- Comforting him if he get a calamity
- Forgiving his mistakes
- Covering up his shame
- Be patient if he did something hurt
- Showing him the right path
- Giving loans when he need it.
- Maintain eye view to the opposite sex.
Prophet Muhammad SAW (peace be upon him) said "The best friend (according to God) is the best person to his other friend, and the best neighbor (according to God) is the best person to his other neighbor)" (Hadeeth Bukhori).
Allah The Almighty said in The Holly Qur'an, Surah An-Nisaa, verse 36 : "Worship Allah and join none with Him in worship, and do good to parents, kinsfolk, orphans, Al-Masaakin (the poor), the neighbor who is near of kin, the neighbor who is stranger, the companion by your side, the wayfarer (you meet), and those (slaves) whom your right hands posses. Verily, Allah does not like such as are proud and boastful".