"When the Prophet ﷺ was expelled from Makkah, Abu Bakr said: 'They have driven out their Prophet to their own doom.' So Allah, Most High, revealed: 'Permission (to fight) is given to those who are fought against, because they have been wronged; and surely, Allah is able to give them victory (22:39).' So Abu Bakr said: 'Then I knew that there would be fighting.'"
لَمَّا أُخْرِجَ النَّبِيُّ ﷺ مِنْ مَكَّةَ قَالَ أَبُو بَكْرٍ أَخْرَجُوا نَبِيَّهُمْ لَيَهْلِكُنَّ فَأَنْزَلَ اللَّهُ (أُذِنَ لِلَّذِينَ يُقَاتَلُونَ بِأَنَّهُمْ ظُلِمُوا وَإِنَّ اللَّهَ عَلَى نَصْرِهِمْ لَقَدِيرٌ ) الآيَةَ فَقَالَ أَبُو بَكْرٍ لَقَدْ عَلِمْتُ أَنَّهُ سَيَكُونُ قِتَالٌ قَالَ هَذَا حَدِيثٌ حَسَنٌ وَقَدْ رَوَاهُ عَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ وَغَيْرُهُ عَنْ سُفْيَانَ عَنِ الأَعْمَشِ عَنْ مُسْلِمٍ الْبَطِينِ عَنْ سَعِيدِ بْنِ جُبَيْرٍ مُرْسَلاً لَيْسَ فِيهِ عَنِ ابْنِ عَبَّاسٍ