The hadith of Abu Hurairah states that suspicion is the worst of false tales and should be avoided. This means that one should not make assumptions or jump to conclusions without any evidence or proof. It is important to remember that making assumptions can lead to wrong conclusions and hurtful words or actions. It is better to ask questions and get the facts before forming an opinion about something or someone. This hadith teaches us the importance of being careful with our words and actions in order to avoid causing harm or distress to others.