وَلَقَدْ عَلِمْنَا الْمُسْتَقْدِمِيْنَ مِنْكُمْ وَلَقَدْ عَلِمْنَا الْمُسْتَأْخِرِيْنَ ( الحجر: ٢٤ )
Wa la qad 'alimnal mustaqdimeena minkum wa laqad 'alimnal mustaakhireen (al-Ḥijr 15:24)
And We have already known the preceding [generations] among you, and We have already known the later [ones to come]. (Al-Hijr  : 24)
1 Mufti Taqi Usmani
We know those of you who went ahead, and We know those who remained late.