(An ally of the tribe of Bani 'Amir bin Lu'ai and one of those who had witnessed the battle of Badrwith Allah's Messenger (ﷺ)) Allah's Messenger (ﷺ) sent Abu 'Ubaida bin AlJarrah to Bahrain to collect the Jizyatax. Allah's Messenger (ﷺ) had concluded a peace treaty with the people of Bahrain and appointed Al 'Alabin Al-Hadrami as their chief; Abu Ubaida arrived from Bahrain with the money. The Ansar heard ofAbu 'Ubaida's arrival which coincided with the Fajr (morning) prayer led by Allah's Messenger (ﷺ). Whenthe Prophet (ﷺ) finished the prayer, they came to him. Allah's Messenger (ﷺ) smiled when he saw them and said,"I think you have heard of the arrival of Abu 'Ubaida and that he has brought something." Theyreplied, "Yes, O Allah's Messenger (ﷺ)! " He said, "Have the good news, and hope for what will please you.By Allah, I am not afraid that you will become poor, but I am afraid that worldly wealth will be givento you in abundance as it was given to those (nations) before you, and you will start competing eachother for it as the previous nations competed for it, and then it will divert you (from good) as itdiverted them." '