صحیح ابن حبان
Ibn Hibban
كتاب السير
Book of Expeditions
باب الخروج وكيفية الجهاد - ذكر البيان بأن عدة أهل بدر كانت عدة أصحاب طالوت سواء-
Chapter on Setting Out and the Manner of Jihad – Clarifying that the number of people at Badr was the same as the companions of Talut.
1 hadith
Hadith 4796
Sayyiduna Bara’ (may Allah be pleased with him) narrates: We used to say that the number of the companions of Badr was a little more than three hundred and ten. This was the same as the number of the companions of Sayyiduna Talut (peace be upon him) who crossed the river with him, and only believing people crossed it with him.