Israel

And remember when We took a covenant from the Children of Israel: 'Do not worship anyone but Allah.

2:83And (remember) when We made a covenant with the Children of Israel, (saying): Worship none save Allah (only), and be good to parents and to kindred and to orphans and the needy, and speak kindly to mankind; and establish worship and pay the poor-due. Then, after that, ye slid back, save a few of you, being averse.

They were commanded only to worship Allah, devoting their faith to Him alone, to establish prayer and give charity, That is the true religion.

98:5And they are ordered naught else than to serve Allah, keeping religion pure for Him, as men by nature upright, and to establish worship and to pay the poor-due. That is true religion.