From Madina, Abdullah b Saba went to Basra. There he stayed with Hakim b Jabala, a brigand. There he indulged in the propaganda that those who robbed the rich were not outlaws; they merely aimed at narrowing down the differences between the rich and the poor. He insinuated that as a matter of fact, the Government which depended upon the support of the rich was a tyranny. The common men came to feel that Abdullah b Saba was their well-wisher. Abdullah b Saba thus poisoned the political atmosphere at Basra. The Governor of Basra kept a watch on the activities of Abdullah b Saba. From the reports that he received it transpired that Abdullah was preaching doctrines which were very dangerous. The Government of Basra accordingly expelled Abdullah b Saba from the province 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