Surah Al-A'raf (The Heights), Verse 46

وَبَیْنَهُمَا حِجَابٌ وَعَلَی الْاَعْرَافِ رِجَالٌ یَّعْرِفُوْنَ كُلًّا بِسِیْمٰىهُمْ وَنَادَوْا اَصْحٰبَ الْجَنَّةِ اَنْ سَلٰمٌ عَلَیْكُمْ لَمْ یَدْخُلُوْهَا وَهُمْ یَطْمَعُوْنَ ۟

Wa bainahumaa hijaab; wa 'alal A'raafi rijaaluny ya'rifoona kullam biseemaahum; wa naadaw Ashaabal jannati an salaamun 'alaikum; lam yadkhuloohaa wa hum yatma'oon

“Between them shall be a veil, and on the heights will be men who would know every one by his marks: they will call out to the Companions of the Garden, "peace on you": they will not have entered, but they will have an assurance (thereof).”

Quran 7:46 (Yusuf Ali Translation)