Is there a sin on me if I forget a surah from the Noble Qur'an after memorizing it?

Question:
He says: I memorize surahs from the Noble Qur'an, and when I move on to memorizing another surah, I forget the one I had memorized. Is there a sin on me if I forget any surah after memorizing it?

Answer:
There is no sin on you, nor is there any blame for forgetting, because forgetting is not by your choice. However, you must strive to memorize the Qur'an and recite it frequently. If you are unable to memorize it, you read the Qur'an from the mushaf and recite frequently from the mushaf, and this is sufficient, praise be to Allah. Otherwise, you memorize short surahs to pray the obligatory prayer with them, and as for what is beyond that, you read from the mushaf as long as memorization is difficult for you. May Allah reward you with good.