Yahya related to me from Malik from Abu'z-Zinad from al-Araj fromAbu Hurayra that the Messenger of Allah, may Allah bless him and granthim peace, said, "Beware of suspicion. Suspicion is the most untruespeech. Do not spy and do not eavesdrop. Do not compete with eachother and do not envy each other and do not hate each other and do notshun each other. Be slaves of Allah, brothers."
USC-MSA web (English) reference: Book 47, Hadith 15
Arabic reference: Book 47, Hadith 1650