Word by Word Analysis

وَيَصْنَعُ ٱلْفُلْكَ وَكُلَّمَا مَرَّ عَلَيْهِ مَلَأٌ مِّن قَوْمِهِۦ سَخِرُوا۟ مِنْهُ ۚ قَالَ إِن تَسْخَرُوا۟ مِنَّا فَإِنَّا نَسْخَرُ مِنكُمْ كَمَا تَسْخَرُونَ 38

And he constructed the ship, and whenever an assembly of the eminent of his people passed by him, they ridiculed him. He said, "If you ridicule us, then we will ridicule you just as you ridicule.