The verse continues saying: “.
The verse continues saying: “...to frighten thereby the enemy of Allah, and your enemy,...” The reason of it is that usually most of the enemies of the truth do not pay attention to the logical statements and human principals. They do not understand anything but the logic of force.
Then, the Qur’an adds that in addition to these enemies, whom you know, you have some other enemies whom you do not know, but Allah knows them, and with the increase of the military preparation in yourselves they may fear and return back. The verse says: “...and others besides them, whom you do not know (but) Allah knows them...” This statement contains an instruction for the Muslims of today, too.
It implies that Muslims should not lay emphasis only on their known enemies and confine their preparation to the limit of struggling before them. They should also consider their probable enemies who are in potency, and prepare the utmost power and necessary forces they can. Finally, the Qur’an points to another important matter. It implies that preparing power, forces, enough military; instruments and different means of defense need a financial source.
Therefore, it commands Muslims to supply this capital through a general cooperation. They must know that whatever they spend in this way they have spent it in the way of Allah, and it will not be decreased. The verse says: “...And whatever things you spend in the way of Allah shall be repaid to you in full...” Equal to all that they give and, even more than that, will be repaid to them so that no injustice will be dealt with them.
The verse ends as follows: “...and you will not be dealt with unjustly.” Explanations This verse is an instruction upon the Muslims to be prepared before the enemy from all points of view. They are commanded to supply any kind of arms and possibilities, to utilize all means and methods of propagation, even mottoes and poems that may cause the fright of infidels from the military power of Muslims.
When the Prophet (S) was informed that a new weapon had been made in Yemen, he sent someone to Yemen to supply it. It is narrated from the Prophet (S) that by means of an ‘arrow’ three persons will be sent into Paradise: its constructor, the one who prepares it, and the person who, throws (it toward the enemy of Allah).[^2] In Islam, financial winning and losing in the races of shooting, and horsemanship, have been counted permissible in order that military preparation might be supplied.