Sahih Muslim Book - 44, Hadith - 6413

حَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ الْحَنْظَلِيُّ ، وَأَحْمَدُ بْنُ عَبْدَةَ ، وَاللَّفْظُ لإِسْحَاقَ ، قَالاَ : أَخْبَرَنَا سُفْيَانُ ، عَنْ عَمْرٍو ، عَنْ جَابِرِ بْنِ عَبْدِ اللهِ ، قَالَ : فِينَا نَزَلَتْ : {إِذْ هَمَّتْ طَائِفَتَانِ مِنْكُمْ أَنْ تَفْشَلاَ وَاللَّهُ وَلِيُّهُمَا} بَنُو سَلِمَةَ وَبَنُو حَارِثَةَ ، وَمَا نُحِبُّ أَنَّهَا لَمْ تَنْزِلْ ، لِقَوْلِ اللهِ عَزَّ وَجَلَّ {وَاللَّهُ وَلِيُّهُمَا}.

It was narrated that Jabir bin 'Abdullah said: "The Verse 'When two parties from among you were about to lose heart, but Allah was their Waif (Supporter and Protector), was revealed concerning us; Banu Salamah and Banu Harithah – and we would not like for it not to have been revealed, because Allah, Glorified and Exalted is He, said: 'But Allah was their Wall (Supporter and Protector).'"