A man came to Sa'id bin Jubair (may Allah have mercy on him) and asked about a verse of the Qur'an. He replied, "Allah knows best!" The man said, "Say something from your own opinion, may Allah set you right!" So Sa'id bin Jubair (may Allah have mercy on him) said, "Shall I say something about the Book of Allah from my own opinion?!" He repeated this two or three times and did not give any answer.