If you leave for fight in the cause of God, you must make enough investigation [to be sure of the hostile intention of the enemy.] If you are greeted and received a peace offer, do not refuse it by abruptly saying: “You are disbelievers.” If you take such an attitude for the sake of making some money [by engaging in the war], remember that God can offer you more wealth [if you adopt righteousness.] Remember that you were in a similar (weak) situation and God blessed you with His grace. You must be absolutely sure [of the hostile intention of the enemy as well as your pure intention of fighting for the cause of God and not for making some fortune] before you strike keeping in mind that God is fully aware of what you are doing.