The Prophet said, "None of you will have faith till he wishes for his (Muslim) brother what he likes for himself."
Bukhari - Book 1 - Volume 2 - Hadith 12
Narrated 'Abdullah bin 'Amr:
A man asked the Prophet , "What sort of deeds or (what qualities of) Islam are good?" The Prophet replied, 'To feed (the poor) and greet those whom you know and those whom you do not Know.
Bukhari - Book 1 - Volume 2 - Hadith 11
Narrated Abu Musa:
Some people asked Allah's Apostle, "Whose Islam is the best? i.e. (Who is a very good Muslim)?" He replied, "One who avoids harming the Muslims with his tongue and hands."
Bukhari - Book 1 - Volume 2 - Hadith 10
Narrated 'Abdullah bin 'Amr:The Prophet said, "A Muslim is the one who avoids harming Muslims with his tongue and hands. And a Muhajir (emigrant) is the one who gives up (abandons) all what Allah has forbidden."
Bukhari - Book 1 - Volume 2 - Hadith 9