Surah Al-Hijr (15:24)
وَلَقَدْ عَلِمْنَا ٱلْمُسْتَقْدِمِينَ مِنكُمْ وَلَقَدْ عَلِمْنَا ٱلْمُسْتَـْٔخِرِينَ
And We have indeed known those who advance among you, and We have indeed known those who hold back.
Roots in this verse: ع ل م (Elm), ق د م (qdm), ا خ ر (Axr)