Whoever turns away from it (this Quran i.e. does not believe in it, nor acts on its orders), verily, they will bear a heavy burden (of sins) on the Day of Resurrection
So, whoever turns away from it (the reality that is being reminded), indeed, he will bear a heavy burden in the period of the Doomsday.
Sayyed Abbas Sadr-Ameli
Whoever turns away from it, verily he will bear, on the Day of Judgment, a burden
Al-muntakhab fi tafsir al-Qur'an al-Karim
A Quran, a spirit of truth guiding into all truth, and he who rejects it or turns his back upon it will have rejected Allah's mercy and he shall suffer the heavy burden he carries in Day of Judgement