I heard the Messenger of Allah ﷺ say, "Indeed, some eloquence is sorcery, some knowledge is ignorance, some poetry is wisdom, and some speech is a burden."Sasaa bin Sawhan said, "The Prophet of Allah ﷺ has spoken the truth.As for his saying that some eloquence is sorcery, this refers to a man who has a wrongful claim against another, yet he is more skilled in argument than the one with the rightful claim, so he bewitches the people with his eloquence and takes away the right.As for his saying that some knowledge is ignorance, this refers to the scholar who imposes upon his knowledge what he does not actually know, and so it renders him ignorant.As for his saying that some poetry is wisdom, these are the admonitions and parables by which people take heed.As for his saying that some speech is a burden, this is your offering your words and conversation to one who has no concern for them and does not want them."
حدثنا محمد بن يحيى بن فارس حدثنا سعيد بن محمد حدثنا أبو تميلة قال حدثني أبو جعفر النحوي عبد الله بن ثابت قال
سمعت رسول الله ﷺ يقول إن من البيان سحرا وإن من العلم جهلا وإن من الشعر حكما وإن من القول عيالا فقال صعصعة بن صوحان صدق نبي الله ﷺ أما قوله إن من البيان سحرا فالرجل يكون عليه الحق وهو ألحن بالحجج من صاحب الحق فيسحر القوم ببيانه فيذهب بالحق وأما قوله إن من العلم جهلا فيتكلف العالم إلى علمه ما لا يعلم فيجهله ذلك وأما قوله إن من الشعر حكما فهي هذه المواعظ والأمثال التي يتعظ بها الناس وأما قوله إن من القول عيالا فعرضك كلامك وحديثك على من ليس من شأنه ولا يريده