Causes of Forgetting the Noble Qur'an

Question:
We return to the fax questions. A questioner says: Honorable Shaykh, what is the ruling on a person who memorized the entire Qur'an and then forgot it, either because of his sins or because he became preoccupied with worldly matters like buying and selling? What is his ruling, and what is required of him?

Answer:
The Prophet (peace and blessings be upon him) commanded the recitation of the Qur'an and frequenting it; for it slips away just as camels slip from their tether. If a person becomes preoccupied with other things, he forgets what he had memorized of it. This is due to not reciting and staying away from reciting the Qur'an. For this reason, the Prophet (peace and blessings be upon him) encouraged frequenting the Qur'an and reciting it often so that a person does not forget it.
Forgetting occurs for two reasons, one of two reasons: either an illness struck the person and his memory weakened, and this person is excused in that.
Or the forgetting is due to not frequenting it and not reciting it, and this is a loss for the person. But he should not despair of recovering the Qur'an, reciting it, and reciting it often so that his memorization returns to him, and what he had forgotten of the Noble Qur'an returns to him. He should not say, "I forgot, that's it." Rather, he should return to the Qur'an, read the Qur'an, recite it often, and seek help from Allah (Mighty and Majestic). Yes.