
From the life of Hazrat Abu Ubaidah (ra) bin Jarrah
Various narrations can be found in relation to the bond of brotherhood established with Hazrat Abu Ubaidah (ra). According to some, the Holy Prophet (sa) formed a bond of brotherhood between Hazrat Abu Ubaidah (ra) and Hazrat Salim (ra), the freed slave of Hazrat Abu Huzaifah (ra). According to others, the Holy Prophet (sa) formed a bond of brotherhood between him and Hazrat Muhammad bin Maslamah (ra). Yet, according to others, a bond of brotherhood was formed with Hazrat Sa‘d bin Mu‘az (ra).
(Ibn Sa‘d, al-Tabaqat al-Kubra, Vol. 3 [Beirut, Lebanon: Dar al-Kutub al-Ilmiyyah, 2012] 313.) (Ibn Hajar al-Asqalani, al-Isabah fi Tamyiz al-Sahabah, Vol. 3, Amir bin Abd-Allah [Beirut, Lebanon: Dar al-Kutub al-Ilmiyyah, 2005] 476.)