تفسير : (and those that glide with ease (upon the sea)) and he swears by the ships which easily sail on the sea,
Jalāl al-Dīn al-Maḥallī
تفسير : and those that run, the ships that run upon the surface of the water, with ease (yusran is a verbal noun functioning as a circumstantial qualifier, that is to say, muyassaratan);
