The Demise of the Holy Prophet (sa)
After the demise of the Holy Prophet (sa), when Hazrat Mu‘az (ra) went to perform Hajj, he met Hazrat Umar (ra), who had been appointed by Hazrat Abu Bakr (ra) to oversee matters pertaining to the Hajj. Hazrat Umar (ra) and Hazrat Mu‘az (ra) met on the day of tarwiyyah. They embraced each other and expressed their condolences to one another for the demise of the Holy Prophet (sa). Then they both sat on the ground and began conversing.
(Ibn Sa‘d, al-Tabaqat al-Kubra, Vol. 3, Mu‘az (ra) bin Jabal… [Beirut, Lebanon: Dar al-Kutub al-Ilmiyyah, 1990], 441)