Jami` at-Tirmidhi 1598
جامع الترمذي#1598Sahihحَدَّثَنَا وَاصِلُ بْنُ عَبْدِ الأَعْلَى الْكُوفِيُّ، حَدَّثَنَا أَبُو بَكْرِ بْنُ عَيَّاشٍ، عَنْ أَبِي إِسْحَاقَ، عَنِ الْبَرَاءِ، قَالَ كُنَّا نَتَحَدَّثُ أَنَّ أَصْحَابَ، بَدْرٍ يَوْمَ بَدْرٍ كَعِدَّةِ أَصْحَابِ طَالُوتَ ثَلاَثِمِائَةٍ وَثَلاَثَةَ عَشَرَ رَجُلاً . قَالَ وَفِي الْبَابِ عَنِ ابْنِ عَبَّاسٍ . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ . وَقَدْ رَوَاهُ الثَّوْرِيُّ وَغَيْرُهُ عَنْ أَبِي إِسْحَاقَ .
Narrated Al-Bara' : "We used to say that the participants of Badr on the Day of Badr were like the number of companions of Talut, three hundred and thirteen men." [He said:] There is something on this topic from Ibn 'Abbas. [Abu 'Eisa said:] This Hadith is Hasan Sahih. Ath-Thawri and others reported it from Abu Ishaq
Scholarly Authentication
The label above is the grade most of these scholars gave, each scholar counted once — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. When they judged only its chain of narrators (“Isnaad”), the label says “Sound chain”. Each scholar's own wording:
Our source also lists this ruling under Ahmad Muhammad Shakir, the editor of the printed edition it was taken from. It is al-Albani's ruling printed again, so it is counted once.
In-book reference: 21:60