وَمَن جَٰهَدَ فَإِنَّمَا يُجَٰهِدُ لِنَفْسِهِۦٓ ۚ إِنَّ ٱللَّهَ لَغَنِىٌّ عَنِ ٱلْعَٰلَمِينَ
Commentary:
As against the wrong construction deliberately placed on jihad by some prejudiced Christian orientalists, the primary significance of this word, as is apparent from this verse, is 'to strive.' It is in this sense that the word has been frequently used in the Surahs revealed at Mecca where fighting with the sword was out of the question. As to the significance of jihad by the sword and the circumstances under which it is allowed and the conditions that govern its conduct and continuance, see 22:40.
The verse gives a brief but very apt description of a Mujahid—true striver in the way of God. High and noble ideals and consistent and constant effort to carry them out into actual practice is what in Islamic terminology is called Jihad, and the person who possesses these noble ideals and lives up to them is a Mujahid in the true sense of the word.