سُورَةُ الأَعۡرَافِ

And ask them about that town which stood by the sea: how its people would profane the Sabbath whenever their fish came to them, breaking the water's surface, on a day on which they ought to have kept Sabbath -because they would not come to them on other than Sabbath-days! Thus did We try them by means of their [own] iniquitous doings.