Demise
In the final moments of his life, Hazrat Abu Ubaidah (ra) said to the people:
“I impart upon you one piece of advice and if you adhere to it, you will greatly benefit from it: observe the Salat, pay the Zakat, keep the fasts of Ramadan, continue to give Sadaqah, perform the Hajj and Umrah, urge one another to do good, treat your leaders well and do not seek to deceive them and do not allow your wives to become a reason for you to neglect your obligations.
“If a person remains alive for a thousand years, even then they will one day have to depart from this world just as I am departing from this world. Allah has decreed death for every person. Everyone shall taste death, however wise is he who is ever ready for death and continues to make provisions for that day. Convey my Salam to the Leader of the Faithful [Hazrat Umar (ra)] and let him know that I fulfilled all my trusts.”
Hazrat Abu Ubaidah (ra) then stated, “In accordance with my decision, bury me here.” Thus, the grave of Hazrat Abu Ubaidah (ra) is situated in the valley of Baisan in Jordan.
According to some narrations, Hazrat Abu Ubaidah bin Jarrah (ra) was travelling from Jabiyah towards Jerusalem to offer his prayer when he passed away during the journey. And according to another narration, he passed away in Fahl, which is in Syria and his grave is in an area near Baisan.
During his final days, Hazrat Abu Ubaidah (ra) appointed Hazrat Mu‘az (ra) bin Jabal as his representative. When Hazrat Abu Ubaidah (ra) passed away, Hazrat Mu‘az (ra) bin Jabal said:
“O People, I have never seen anyone more pure-hearted, free from malice, loving and compassionate than the one who has passed away from among us today. Pray that may Allah bestow His mercy upon him.”
(Yaqut Ibn Abd Allah al-Hamawi, Mu‘jam al-Buldan, Vol. 2 [Beirut, Lebanon: Dar al-Kutub al-Ilmiyyah] 31-33) (Siyar A‘lam al-Nubala li Imam al-Dhahabi, Vol. 1, pp. 22-23, Abu Ubaidah bin al-Jarrah, Mu‘assisat al-Risalah, Beirut, Lebanon, 1996)
Hazrat Abu Ubaidah (ra) bin Jarrah passed away in 18 AH and he was 58 years of age at the time.
(Ibn Abd al-Barr, al-Isti‘ab fi Ma‘rifat al-Ashab, Vol. 2 [Beirut, Lebanon: Dar al-Kutub al-Ilmiyyah, 2010] 343)