Sahih al-Bukhari, Hadith 4004 ⓘ
Narrated Ibn Maqal: `Ali led the funeral prayer of Sahl bin Hunaif and said, "He was one of the warriors of Badr."
حَدَّثَنِي مُحَمَّدُ بْنُ عَبَّادٍ، أَخْبَرَنَا ابْنُ عُيَيْنَةَ، قَالَ أَنْفَذَهُ لَنَا ابْنُ الأَصْبَهَانِيِّ سَمِعَهُ مِنِ ابْنِ مَعْقِلٍ، أَنَّ عَلِيًّا ـ رضى الله عنه ـ كَبَّرَ عَلَى سَهْلِ بْنِ حُنَيْفٍ فَقَالَ إِنَّهُ شَهِدَ بَدْرًا.
also referenced under: Book 64, Hadith 55 (In-Book) & Volume 5, Book 59, Hadith 341 (USC-MSA)