Given a sentence in Somali language, translate the sentence to English language keeping the meaning of the original sentence intact

Somali sentence: Kuwa ka gaaloobay Quraanka, waxaa jira saamayn weyn. Dadka sida Eebe wuxuu yidhi, "Waxaan ku jiifsaday mugdi Quluubtooda iyo caloolxumo oo dhegaha ugu jiray inay kasaan.
As for those who reject the Koran, there is an even greater effect. Of such people Allah says, "We lay veils upon their hearts and heaviness in their ears lest they understand it.