Al-A'raf 7:46

Wabaynahuma hijabunwaAAala al-aAArafi rijalun yaAArifoonakullan biseemahum wanadaw as-habaaljannati an salamun AAalaykum lam yadkhuloohawahum yatmaAAoon

And between them will be a partition [i.e., wall], and on [its] elevations are men who recognize all by their mark. And they call out to the companions of Paradise, "Peace be upon you." They have not [yet] entered it, but they long intensely.

Between the two groups there will be a barrier. And on A‘rāf (the Heights) there shall be people who will recognize each group through their signs, and they will call out to the people of Paradise, “Peace on you.” They will not have entered it, yet they will hope to.