Those who reject the Reminder when it has come to them (should know) that it is a Book inviolate.
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Tafseer
'Abdullāh Ibn 'Abbās / Muḥammad al-Fīrūzabādī
تفسير : (lo! those who disbelieve in the reminder) i.e. the qur'an (when it cometh unto them) when muhammad (pbuh) took it to them; the reference here is to abu jahl and his host, ((are guilty)) and in the hereafter they will have the fire of gehenna, (for lo! it) i.e. the qur'an (is an unassailable scripture) a glorious and noble scripture.
Jalāl al-Dīn al-Maḥallī
تفسير : truly those who disbelieve in the remembrance — the qur’ān — when it comes to them …, we will requite them — and truly it is an unassailable book: