Quran 7:160 — The Purgatory (Al-A'araf)

We divided them into twelve tribal communities, and we inspired Moses when his people asked him for water: "Strike the rock with your staff," whereupon twelve springs gushed out therefrom. Thus, each community knew its water. And we shaded them with clouds, and sent down to them manna and quails: "Eat from the good things we provided for you." It is not us that they wronged; it is they who wronged their own souls.

[7:159] Among the followers of Moses there are those who guide in accordance with the truth, and the truth renders them righteous.

[7:161] Recall that they were told, "Go into this town to live, and eat therefrom as you please, treat the people amicably, and enter the gate humbly. We will then forgive your transgressions. We will multiply the reward for the righteous."