تفسير : (and lo! it) i.e. the qur'an (is indeed an anguish) a remorse (for the disbelievers) on the day of judgement.
Jalāl al-Dīn al-Maḥallī
تفسير : and assuredly it, that is, the qur’ān, is a [cause of] anguish for the disbelievers, when they see the reward of those who affirmed its truth and the punishment of those who denied it.
Sahl al-Tustari
تفسير : and assuredly it is a [cause of] anguish for the disbelievers.he said:that is, they see the reward that is had by the people who professed god’s oneness, along with their ranks and noble stations.but god, glorified and exalted is he, knows best.his words, exalted is he:
