مُجَٰهِدِين

Appears 2 times in the Quran. (Root: جهد)
  1. The holders back from among the believers, not having any injury, and those who strive hard in Allah's way with their property and their persons are not equal; Allah has made the strivers with their property and their persons to excel the holders back a (high) degree, and to each (class) Allah has promised good; and Allah shall grant to the strivers above the holders back a mighty reward:

  2. And most certainly We will try you until We have known those among you who exert themselves hard, and the patient, and made your case manifest.