Surah An-Nahl — Ayah 124 (16:124)
إِنَّمَا جُعِلَ ٱلسَّبۡتُ عَلَى ٱلَّذِينَ ٱخۡتَلَفُواْ فِيهِۚ وَإِنَّ رَبَّكَ لَيَحۡكُمُ بَيۡنَهُمۡ يَوۡمَ ٱلۡقِيَٰمَةِ فِيمَا كَانُواْ فِيهِ يَخۡتَلِفُونَ ١٢٤
English translation (Saheeh International)
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.
Brief commentary
Reverence of the Sabbath was only made obligatory on the Jews who differed about it, so that they could free themselves on that day from their occupations for the sake of worship. This was after they had strayed from the day of Friday in which they were instructed to free themselves. Your Lord - O Messenger - will judge between these people who differ on the Day of Judgment about what they used to differ in and He will recompense each person with what they deserve.