In The Name of Allaah, The Most Merciful, The Bestower of Mercy

Shaikh Abdullaah Al-Bukhaari [may Allaah preserve him] said:
There is nothing in the knowledge [of the sharee’ah related to] foolishness, recklessness, lying, insult and its likes among the manners of the people of oppression and desires; rather knowledge is clarification of the truth and disapproval of falsehood. Imaam Al-Awzaa-ee [rahimahullaah] said, “Knowledge is what the companions of Muhammad [sallallaahu alaihi wa sallam] transmit and what is not transmitted by a single one of them is not knowledge.”