463.Hadhrat Abu Hurairah (Allah be pleased with him) narrates that Muhammad (peace be upon him) said: "refrain from suspicion. The worst of lies is suspicion (thinking ill of others on mere supposition). Do not pry into the private affairs of others. Do not bid a higher price (for any object of sale) with the intention to deceive (and not to buy). Do not have jealousy for one another nor entertain malice for each other. Do not scandal (gheebat). Fear Allah! All servants (of Allah) should live like brothers."
(Bukhari, Muslim).
(Hayaat-ul-Muslimeen. by Mohammad Ashraf Ali Thanvi).