Surah Adh-Dhariyat 51:3
فَٱلْجَـٰرِيَـٰتِ يُسْرًا
And the ships sailing with ease
Translation: Saheeh International
Tafsir
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;
Excerpt from Tafsir al-Jalalayn, commentary on 51:3, via Quran.com. The reader has the full commentary and 9 more tafsirs.