In 631 C. E the Holy Prophet sent from Madina, a delegation of three hundred Muslims to perform the Hajj. Abu Bakr was appointed as the leader of the delegates. Abu Bakr had thus the honor of being the first 'Amir-ul-Hajj" in the history of Islam
"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