The Cow - 2:65
"Surely you know those of you who transgressed the prohibition of Saturday. We said to them: "Be despicable monkeys"."
What does the Saturday ban mean?
The Heights/7:163
Ask them about the people by the sea. They used to violate the prohibition of work on Saturday. On the day when they observed Saturday their fish came to them in abundance, but on the day when they did not observe Saturday no fish came to them. Thus did We test them because they went astray.