وَلَقَدْ عَلِمْنَا ٱلْمُسْتَقْدِمِينَ مِنكُمْ وَلَقَدْ عَلِمْنَا ٱلْمُسْتَـْٔخِرِينَ
Wa la qad 'alimnal mustaqdimeena minkum wa laqad 'alimnal mustaakhireen
We know exactly those of you who come first and those who come later.
And we surely know those of you who go ahead, and we surely know those who lag behind.