إِنَّمَا جُعِلَ السَّبْتُ عَلَى الَّذِينَ اخْتَلَفُواْ فِيهِ وَإِنَّ رَبَّكَ لَيَحْكُمُ بَيْنَهُمْ يَوْمَ الْقِيَامَةِ فِيمَا كَانُواْ فِيهِ يَخْتَلِفُونَ
[16:124]
The Sabbath was ordained only for those who differed about it, and most surely your Lord will judge between them on the resurrection day concerning that about which they differed.
The Sabbath was only made (strict) for those who disagreed (as to its observance); But Allah will judge between them on the Day of Judgment, as to their differences.
The Sabbath was appointed only for those who differed concerning it, and lo! thy Lord will judge between them on the Day of Resurrection concerning that wherein they used to differ.