It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Acquire knowledge before it disappears." The noble companions asked: O Messenger of Allah! How will knowledge disappear when we have the Book of Allah with us? The narrator said: The Messenger of Allah (peace and blessings be upon him) became angry, then said: "May your mothers lose you! Were not the Torah and the Gospel among the Children of Israel, yet they did not benefit them at all? The disappearance of knowledge is that the people of knowledge disappear. Indeed, the disappearance of knowledge is the disappearance of the people of knowledge."