In 622 C.E. Uthman migrated with his wife Ruqayya to Madina. They were in the third batch of the Muslims who migrated to Madina. Their companions on the migration included Akasha bin Muhsin, Zainab b Jahsh, and her sisters Hamna and Umm Habiba. On arrival in Madina Uthman stayed with Aus b Thabit Ansari of the Najjar tribe. After some time Uthman purchased a house of his own and shifted there.
"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