ANSWER:

This is not sinful.

I completed memorising Quran 11 years ago but due to my job/career, I’m not been able to devote time to revise it on a daily basis. I think I forgot major part of what I initially memorised. I know this is a big sin to forget Quran but inspite of trying a lot, I’m unsuccessful in creating a daily revision habit, bound by circumstances. This sin is troubling my heart and mind every second.

Reading/Reciting the Quran |