Mugheera b Shu'ba belonged to the tribe of Thaqueef of Taif. He became a convert to Islam after the battle of Taif in 628 C.E. On conversion to Islam he took part in all the battles. He was a brave fighter. He lost an eye in the battle of Yamamma. During the caliphate of Umar, Utba b Ghazwan was the Governor of Basm while Mugheera b Shu'ba was the Deputy Governor. Utab b Ghazwan died in 639 C.E., and Mugheera b Shu'ba became the Governor of Basra.
"When a person dies, his works end, except for three: ongoing charity, knowledge that is benefited from, and a righteous child who prays for him."
Prophet Mohammed (PBUH)
"The best of what a man leaves behind are three: a righteous child who supplicates for him, ongoing charity the reward of which reaches him, and knowledge that is acted upon after him."
Sunan Ibn Mājah
"Every day two angels come down from Heaven and one of them says, 'O Allah! Compensate every person who spends in Your Cause,' and the other (angel) says, 'O Allah! Destroy every miser.'"
Sahih Bukhari