65يَـٰٓأَيُّهَا ٱلنَّبِىُّ حَرِّضِ ٱلْمُؤْمِنِينَ عَلَى ٱلْقِتَالِ ۚ إِن يَكُن مِّنكُمْ عِشْرُونَ صَـٰبِرُونَ يَغْلِبُوا۟ مِا۟ئَتَيْنِ ۚ وَإِن يَكُن مِّنكُم مِّا۟ئَةٌ يَغْلِبُوٓا۟ أَلْفًا مِّنَ ٱلَّذِينَ كَفَرُوا۟ بِأَنَّهُمْ قَوْمٌ لَّا يَفْقَهُونَ
66ٱلْـَٔـٰنَ خَفَّفَ ٱللَّهُ عَنكُمْ وَعَلِمَ أَنَّ فِيكُمْ ضَعْفًا ۚ فَإِن يَكُن مِّنكُم مِّا۟ئَةٌ صَابِرَةٌ يَغْلِبُوا۟ مِا۟ئَتَيْنِ ۚ وَإِن يَكُن مِّنكُمْ أَلْفٌ يَغْلِبُوٓا۟ أَلْفَيْنِ بِإِذْنِ ٱللَّهِ ۗ وَٱللَّهُ مَعَ ٱلصَّـٰبِرِينَ
[65-66] O Prophet! stir the Believers to the fight. If there be twenty men among you, who show fortitude, they will overcome two hundred men, and if there be a hundred such men of you, they will overcome a thousand of the deniers of the Truth, for they are a people who lack understanding.47 Now that Allah has lightened your burden, He has noticed that you are still weak: so if there be a hundred steadfast men among you, they will overcome two hundred men and if there be a thousand such men, they will overcome two thousand by Allah's permission.48 But Allah is with those people alone who show fortitude.
47Here the word "understanding" has been used in the same sense as `morale' is used now-a-days. Understanding is a better scientific term than morale-the moral and mental condition which enables persons to keep up courage and enthusiasm, etc. For it is obvious that the one, who understands clearly the objective for which he is fighting would realize that it is more precious than his own life which would be meaningless if that object was lost, will possess a fighting power far greater than of the one who has no clear understanding of the object for which he is fighting, even though the two may be equal in their physical powers. Above all, the one who has the right understanding of the Reality, of the existence of Allah, of his own position in the universe, of his relation with Allah, of the life and death in this world, of the life in the Next World, of the distinction between Truth and falsehood, of the consequences of the victory of falsehood over Truth, has much more power even than those who fight for their country, their nation or for the sake of a class, even if the latter had the right understanding of their cause. Thus it is clear that the power of the Believers, who have full understanding of their object, is ten times that of disbelievers of the same capability. But along with this understanding, the practice of fortitude is also essential for gaining and maintaining that power.
48This reduction of the ratio of the power of a Muslim to that of a nonMuslim from ten to one, to two to one does not mean that this was due to sane deterioration in the morale of the Muslims. It simply means that in v. 65 the general principle of the ratio of the power of the Believers and the disbelievers was enunciated and in v. 66 that principle was applied in accordance with the then existing condition of their morale. At that time (A.H. 2) the morale of the Muslims had not attained perfection, for many of them had only recently entered the fold of Islam and were still under preliminary training. Afterwards when their morale reached the desired standard under the guidance of the Holy Prophet, the ratio of ten to one was actually established, and was demonstrated practically in the battles during his last years and during the time of his rightly-guided successors.