After all arrangements had been completed, a caravan of over one hundred thousand Muslims fired with their enthusiasm for Islam, started for Makkah to visit the House of God and offer their submission to God. It was a remarkable sight, like which the people of Arabia had not seen before. The Holy Prophet rode at the head of the caravan. All his wives accompanied him. Ali rode by his side. He was accompanied by Fatima,
"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