Surah Al-Hijr, ayah 24

وَلَقَدۡ عَلِمۡنَا ٱلۡمُسۡتَقۡدِمِينَ مِنكُمۡ وَلَقَدۡ عَلِمۡنَا ٱلۡمُسۡتَـٔۡخِرِينَ ٢٤

Walaqad 'alimnal-mustaqdimīna minkum walaqad 'alimnal-musta'khirīn

And We have already known the preceding [generations] among you, and We have already known the later [ones to come].