Participation in the Battle of Badr
Hazrat Khubaib (ra) bin Adiyy took part in the Battle of Badr and killed Harith bin Aamir during the battle. During the Battle of Badr, Hazrat Khubaib (ra) bin Adiyy was appointed to supervise over the army’s possessions.
(Sair Al-Sahaba, Vol. 3, pt. 4, p. 309, Iadaara Islamiyaat, Lahore)