Sahih Bukhari Volume 5, Book 64, Hadith 3967

حَدَّثَنِي مُحَمَّدُ بْنُ عَبْدِ اللَّهِ الرَّقَاشِيُّ، حَدَّثَنَا مُعْتَمِرٌ، قَالَ سَمِعْتُ أَبِي يَقُولُ، حَدَّثَنَا أَبُو مِجْلَزٍ، عَنْ قَيْسِ بْنِ عُبَادٍ، عَنْ عَلِيِّ بْنِ أَبِي طَالِبٍ ـ رضى الله عنه ـ أَنَّهُ قَالَ أَنَا أَوَّلُ، مَنْ يَجْثُو بَيْنَ يَدَىِ الرَّحْمَنِ لِلْخُصُومَةِ يَوْمَ الْقِيَامَةِ‏.‏ وَقَالَ قَيْسُ بْنُ عُبَادٍ وَفِيهِمْ أُنْزِلَتْ ‏{‏هَذَانِ خَصْمَانِ اخْتَصَمُوا فِي رَبِّهِمْ‏}‏ قَالَ هُمُ الَّذِينَ تَبَارَزُوا يَوْمَ بَدْرٍ حَمْزَةُ وَعَلِيٌّ وَعُبَيْدَةُ أَوْ أَبُو عُبَيْدَةَ بْنُ الْحَارِثِ وَشَيْبَةُ بْنُ رَبِيعَةَ وَعُتْبَةُ وَالْوَلِيدُ بْنُ عُتْبَةَ

Narrated By Abu Mijlaz : From Qais bin Ubad: 'Ali bin Abi Talib said, "I shall be the first man to kneel down before (Allah), the Beneficent to receive His judgment on the day of Resurrection (in my favour)." Qais bin Ubad also said, "The following Verse was revealed in their connection: "These two opponents believers and disbelievers) Dispute with each other About their Lord." (22.19) Qais said that they were those who fought on the day of Badr, namely, Hamza, 'Ali, 'Ubaida or Abu 'Ubaida bin Al-Harith, Shaiba bin Rabi'a, 'Utba and Al-Wahd bin Utba.