Bond of Brotherhood
When Hazrat Umair (ra) bin Abu Waqas migrated from Mecca to Medina, the Holy Prophet (sa) established a bond of brotherhood between him and Hazrat Khubaib (ra) bin Adiyy.
(Ayoon Al-Asar, Vol. 1, p. 232, Zikr-ul-Mawakhaat, Dar-ul-Qalam, Beirut, 1993)