It is reported about Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that he used to say: The people of Badr numbered three hundred and thirteen, of whom seventy-six were Muhajirun. The battle of Badr took place on the seventeenth of Ramadan, on a Friday.
Ahmad and al-Bazzar recorded it, though he (al-Bazzar) reported the wording: "three hundred and ten-odd." The narrator says: The Ansar numbered two hundred and thirty-six, and the banner of the Muhajirun was with Sayyiduna Ali (may Allah be pleased with him). Al-Tabarani recorded all of these narrations; their chain contains al-Hajjaj bin Artah, and he is a mudallis.