(38) باب مَا جَاءَ فِي عِدَّةِ أَصْحَابِ أَهْلِ بَدْرٍ
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.
Reference: Jami` at-Tirmidhi 1598
In-book reference: Book 21, Hadith 60
English translation: Vol. 3, Book 19, Hadith 1598