Abdullah bin Amr bin 'ash r.a. said: I heard the Messenger of Allah. He said, "Truly, Allah S.W.T does not disconnect (remove) will at the same knowledge of (breast) human. But God Almighty. eliminate it by turning off science scholars. So, when scholars have been abolished, people will choose those who are ignorant as their leaders. And when leaders asked the ignorant, they will berfatwa without knowledge. They are misguided and misled people. "
