Most of the narrations confirmed that seventy Muslims were killed and most of them, sixty-five, Helpers; forty-one of whom were from Khazraj and twenty-four from Aws. This, besides one Jew and four Emigrants.
As for the polytheists, twenty-two of them were killed, but some versions speak of thirty-seven; after all, Allâh knows best. [Ibn Hisham 2/122-129; Fath Al-Bari 7/351]