Sahih al-Bukhari 3968
Book 64: Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi) · Narrated by Qais bin Ubad
Arabic
حَدَّثَنَا يَحْيَى بْنُ جَعْفَرٍ، أَخْبَرَنَا وَكِيعٌ، عَنْ سُفْيَانَ، عَنْ أَبِي هَاشِمٍ، عَنْ أَبِي مِجْلَزٍ، عَنْ قَيْسِ بْنِ عُبَادٍ، سَمِعْتُ أَبَا ذَرٍّ ـ رضى الله عنه ـ يُقْسِمُ لَنَزَلَتْ هَؤُلاَءِ الآيَاتُ فِي هَؤُلاَءِ الرَّهْطِ السِّتَّةِ يَوْمَ بَدْرٍ. نَحْوَهُ.
English translation
Narrated Qais bin Ubad:I heard Abu Dhar swearing that these Holy Verses were revealed in connection with those six persons on the day of Badr
Reference: Sahih al-Bukhari 3968, Book of Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi). English translation by Dr. Muhammad Muhsin Khan.