ANSWER:

She must take ghusl to uplift major sexual impurity so she can read Quran at least.

What is the islamic ruling when a woman starts her menstruation before getting pure (ghusl) after an intercourse

Purity, Reading/Reciting the Quran | October 11, 2018 5:17 am
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For ghusl only intention is needed?.. do i need to recite any particular dua for this?
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Sheikh here in Pakistan when somebody read whole quran or finish it, everytime, he or she give something sweet to children in street to eat? Is this from sunnah?