The sabbath was only appointed for those who differed over it. And indeed, your Lord will judge between them on the Day of Resurrection concerning that over which they used to differ.
Meaning:-
Sabbath: Sabbath definition, the seventh day of the week, Saturday. Friday is the Muslim Sabbath.
It was reported by Muslim: Allah let the people who came before us stray from Friday, so the Jews had Saturday and the Christians had Sunday. Then Allah brought us and guided us to Friday. So now there are Friday, Saturday and Sunday, thus they will follow us on the Day of Resurrection. We are the last of the people of this world, but will be the first on the Day of Resurrection, and will be the first to be judged, before all of creation.