[68]. A companion of the prophet said, i asked God’s Messenger ﷺ, "What is the best deed in Islam?" He replied, "To perform the prayers at their early stated times." I asked, "What is next in goodness?" He replied, "To honor your parents: for this is well pleasing unto Allāh." I further asked, "What is next in goodness?" He replied, "To participate in Jihâd for God’s Cause."
Here the verse emphasizes a balanced principle of justice in warfare. The command is to fight only those who initiate hostility against the believers—meaning combat is a response to aggression, not an act of oppression or conquest.
At the same time, it sets a strict moral boundary:
Do not transgress beyond what is permitted.
Do not harm non-combatants (women, children, elderly, monks, etc.).
Do not destroy crops, livestock, or places of worship.
Do not continue fighting once the enemy ceases aggression.