حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ، حَدَّثَنَا سُفْيَانُ، عَنْ عَمْرٍو، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ لَمَّا نَزَلَتْ ‏[quran sura="8" aya_start="65" aya_end="65"]{‏إِنْ يَكُنْ مِنْكُمْ عِشْرُونَ صَابِرُونَ يَغْلِبُوا مِائَتَيْنِ‏}‏ فَكُتِبَ عَلَيْهِمْ أَنْ لاَ يَفِرَّ وَاحِدٌ مِنْ عَشَرَةٍ ـ فَقَالَ سُفْيَانُ غَيْرَ مَرَّةٍ أَنْ لاَ يَفِرَّ عِشْرُونَ مِنْ مِائَتَيْنِ ـ ثُمَّ نَزَلَتِ ‏[quran sura="8" aya_start="66" aya_end="66"]{‏الآنَ خَفَّفَ اللَّهُ عَنْكُمُ‏}‏ الآيَةَ، فَكَتَبَ أَنْ لاَ يَفِرَّ مِائَةٌ مِنْ مِائَتَيْنِ ـ زَادَ سُفْيَانُ مَرَّةً ـ نَزَلَتْ ‏[quran sura="8" aya_start="65" aya_end="65"]{‏حَرِّضِ الْمُؤْمِنِينَ عَلَى الْقِتَالِ إِنْ يَكُنْ مِنْكُمْ عِشْرُونَ صَابِرُونَ‏}‏‏.‏ قَالَ سُفْيَانُ وَقَالَ ابْنُ شُبْرُمَةَ وَأُرَى الأَمْرَ بِالْمَعْرُوفِ وَالنَّهْىَ عَنِ الْمُنْكَرِ مِثْلَ هَذَا‏.‏

باب ‏<a href="https://quran.com/8/65-65">{‏يَا أَيُّهَا النَّبِيُّ حَرِّضِ الْمُؤْمِنِينَ عَلَى الْقِتَالِ إِنْ يَكُنْ مِنْكُمْ عِشْرُونَ صَابِرُونَ يَغْلِبُوا مِائَتَيْنِ وَإِنْ يَكُنْ مِنْكُمْ مِائَةٌ يَغْلِبُوا أَلْفًا مِنَ الَّذِينَ كَفَرُوا بِأَنَّهُمْ قَوْمٌ لاَ يَفْقَهُونَ‏}</a>‏

Narrated Ibn `Abbas:

When the Verse:-- "If there are twenty steadfast amongst you, they will overcome two hundred." 
(8.65) was revealed, then it became obligatory for the Muslims that one (Muslim) should not flee from 
ten (non-Muslims). Sufyan (the sub-narrator) once said, "Twenty (Muslims) should not flee before 
two hundred (non Muslims)." Then there was revealed: 'But now Allah has lightened your (task)..' 
(8.66) 
So it became obligatory that one-hundred (Muslims) should not flee before two hundred (nonmuslims). 
(Once Sufyan said extra, "The Verse: 'Urge the believers to the fight. If there are twenty 
steadfast amongst you (Muslims) ..' was revealed.) Sufyan said, "Ibn Shabrama said, "I see that this 
order is applicable to the obligation of enjoining good and forbidding evil."

"0 Prophet (Muhammad ﷺ)! Urge the believers to fight..." (V.8:65)

Sahih al-Bukhari

حَدَّثَنَا يَحْيَى بْنُ عَبْدِ اللَّهِ السُّلَمِيُّ، أَخْبَرَنَا عَبْدُ اللَّهِ بْنُ الْمُبَارَكِ، أَخْبَرَنَا جَرِيرُ بْنُ حَازِمٍ، قَالَ أَخْبَرَنِي الزُّبَيْرُ بْنُ خِرِّيتٍ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ قَالَ لَمَّا نَزَلَتْ ‏[quran sura="8" aya_start="65" aya_end="65"]{‏إِنْ يَكُنْ مِنْكُمْ عِشْرُونَ صَابِرُونَ يَغْلِبُوا مِائَتَيْنِ‏}‏ شَقَّ ذَلِكَ عَلَى الْمُسْلِمِينَ حِينَ فُرِضَ عَلَيْهِمْ أَنْ لاَ يَفِرَّ وَاحِدٌ مِنْ عَشَرَةٍ، فَجَاءَ التَّخْفِيفُ فَقَالَ [quran sura="8" aya_start="66" aya_end="66"]{الآنَ خَفَّفَ اللَّهُ عَنْكُمْ وَعَلِمَ أَنَّ فِيكُمْ ضُعْفًا فَإِنْ يَكُنْ مِنْكُمْ مِائَةٌ صَابِرَةٌ يَغْلِبُوا مِائَتَيْنِ‏}‏‏.‏ قَالَ فَلَمَّا خَفَّفَ اللَّهُ عَنْهُمْ مِنَ الْعِدَّةِ نَقَصَ مِنَ الصَّبْرِ بِقَدْرِ مَا خُفِّفَ عَنْهُمْ‏.‏

باب ‏<a href="https://quran.com/8/66-66">{‏الآنَ خَفَّفَ اللَّهُ عَنْكُمْ وَعَلِمَ أَنَّ فِيكُمْ ضُعْفًا‏}</a>‏ الآيَةَ إِلَى قَوْلِهِ <a href="https://quran.com/8/66-66">‏{‏وَاللَّهُ مَعَ الصَّابِرِينَ‏}‏</a>

Narrated Ibn `Abbas:

When the Verse:--'If there are twenty steadfast amongst you (Muslims), they will overcome twohundred 
(non-Muslims).' was revealed, it became hard on the Muslims when it became compulsory 
that one Muslim ought not to flee (in war) before ten (non-Muslims). So (Allah) lightened the order by 
revealing: 
'(But) now Allah has lightened your (task) for He knows that there is weakness in you. So if there are 
of you one-hundred steadfast, they will overcome (two-hundred (non-Muslims).' (8.66) So when 
Allah reduced the number of enemies which Muslims should withstand, their patience and 
perseverance against the enemy decreased as much as their task was lightened for them.