Yahya related to me from Malik from Abu'z-Zinad from al-Araj from
Abu Hurayra that the Messenger of Allah, may Allah bless him and grant
him peace, said, "Beware of suspicion. Suspicion is the most untrue
speech. Do not spy and do not eavesdrop. Do not compete with each
other and do not envy each other and do not hate each other and do not
shun each other. Be slaves of Allah, brothers."
Muwatta Malik Book 47, Hadith 15