﴿ لَّقَدْ أَحْصَىٰهُمْ وَعَدَّهُمْ عَدًّۭا ﴾

“indeed, He has full cognizance of them, and has numbered them with [unfailing] numbering;”

(Verily He knoweth them) He remembers them (and numbereth them with (right) numbering) and He knows their number.