Sahih al-Bukhari 3970
Sahih al-Bukhari · Book 64: Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi) · The killing of Abu Jahl
Narrated Abu 'Is-haq:
حَدَّثَنِي أَحْمَدُ بْنُ سَعِيدٍ أَبُو عَبْدِ اللَّهِ ، حَدَّثَنَا إِسْحَاقُ بْنُ مَنْصُورٍ ، حَدَّثَنَا إِبْرَاهِيمُ بْنُ يُوسُفَ ، عَنْ أَبِيهِ ، عَنْ أَبِي إِسْحَاقَ ، سَأَلَ رَجُلٌ الْبَرَاءَ وَأَنَا أَسْمَعُ، قَالَ أَشَهِدَ عَلِيٌّ بَدْرًا قَالَ بَارَزَ وَظَاهَرَ.
A man asked Al-Bara' and I was listening, "Did `Ali take part in (the battle of) Badr?" Al-Bara' said, "(Yes). he even met (his enemies) in a duel and was clad in two armors (one over the other).