Bond of Brotherhood
The Holy Prophet (sa) formed a bond of brotherhood between Hazrat Ubaidah bin Harith and Hazrat Umair bin al-Humam. Hazrat Ubaidah bin Harith and Hazrat Umair bin al-Humam were both martyred in the Battle of Badr.
(al-Isti‘ab, Vol. 3, p. 1214, Umair bin al-Humam, Dar-ul-Jamil, Beirut, 1992)