Assalamu alaikum Ustadh. If a person oppresses someone, will the dua against them be answered. Is there any way to make this dua against them not be answered? For example:- Someone cursed that you won't be able to Memorize the Qur'an. Anyway to make this not be answered? Jazakallahu Khairan

Repent from oppressing them and make it up for them if u have done so, this is what is important. As for the person who made dua that u dont memorize the quran this is transgression... and why would they do so as memorizing the quran is a way that leads to rectifying your mistake and oppression!!!