I then said to them, “What do you utter when you enter the mosque, and what do you utter when you leave it?” They were silent.

I added, “O Commander of the Believers! These men do not even know what they should say on entering or leaving the mosque, yet they presume to question me about the Qur’an? The affair of the Qur’an is far more momentous.” He spoke at length, mentioning many other points.1