This often happens with
people whose native language is not Arabic and who are made to memorize the
Qur’ān by rote without being taught Arabic. Forgetting the Qur’ān in this manner
cannot be classified a sin.
However, you should devote some
time for recalling what you have forgotten. You will need less time to refresh
your memory. And since you are now well-versed with its meanings also, you will
greatly enjoy reciting it out by heart whether in the prayer or while traveling
Memorizing the Qur’ān is also one
way of preserving the Qur’ān and transferring it to the next generation. So when
you memorize the Qur’ān, you actually contribute in the divine scheme of
protection of Qur’ān. Hence if you are able to do so, it will reap great reward
for you as well.
Also, it is expected from a
Qur’ān memorizer to be a person who does not merely recite and understand the
Qur’ān. He should be a person who follows the teachings of the Qur’ān also. The
Qur’ān, you would agree is not merely an intellectual reading. It is a Book that
is meant to change one’s life and outlook.