The Sabbath Abrogated
[16:124] The Sabbath was decreed only for those who ended up disputing it (Jews & Christians). Your Lord is the One who will judge them on the Day of Resurrection regarding their disputes.
Did the Jews and Christians have the Friday Prayer?
[19:59] After them, He substituted generations who lost the Contact Prayers (Salat), and pursued their lusts. They will suffer the consequences.
Observing the Commandments Brings Prosperity
[7:163] Remind them of the community by the sea, who desecrated the Sabbath. When they observed the Sabbath, the fish came to them abundantly. And when they violated the Sabbath, the fish did not come. We thus afflicted them, as a consequence of their transgression.
How the Sabbath was switched to Sunday…STRICTLY HISTORY!!!