Ibn Ishaq, listing the names of those who took part in Badr, said: Mu'adh bin Afra', who is Mu'adh bin al-Harith bin Rifa'ah bin Sawda' bin Malik bin Ghanm bin Malik bin al-Najjar. Afra' was the name of his mother, and she was also the mother of Awf and Mu'awwidh; all of them took part in Badr. Afra' was the daughter of Ubayd bin Tha'labah bin Ghanm bin Malik bin al-Najjar.
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 17511