As a man, Uthman was the paragon of virtues. He was a man of stainless character, very pious, very religious and very virtuous. He was an embodiment of all the Islamic values Even in the days of ignorance he never touched wine, never gambled, and never had an intimacy with a woman outside wedlock. According to the Holy Prophet among the Muslims, Uthman most resembled him (the Holy Prophet) and Ibrahim. Uthman had the look of a patriarch. There was a particular radiance about his personality. He observed all the injunctions of Islam faithfully. He would pray for a greater part of the night. He would recite the whole of the Quran in the course of a single prayer. He specialized in the performance of the Hajj ceremonies.
"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