﴿ فَلَا يَصُدَّنَّكَ عَنْهَا مَن لَّا يُؤْمِنُ بِهَا وَٱتَّبَعَ هَوَىٰهُ فَتَرْدَىٰ ﴾

“Hence, let not anyone who does not believe in its coming and follows [but] his own desires divert thee from [belief in] it, lest thou perish!”

So do not let him bar you distract you from it that is from believing in it who believes not in it but follows his own whim in denying the truth of it lest you perish that is lest you be ruined if you are barred from remembering it.