Ameer al-Momineen (a.s) went up the pulpit in Kufa and in a sermon said: “O' people! Beware that the perfection of religion depends upon acquiring knowledge and putting it into practice. It is more important for you to acquire knowledge than collect wealth. Wealth has been divided between you by the Just One. He has guaranteed it. He will keep His promise. However, He has stored knowledge in the hearts of some, and has ordered you to go and seek knowledge. Beware that excessive wealth will corrupt your religion, and will make you ruthless. However having extensive knowledge and putting it into practice will improve the religion and help you get into Heaven. Wealth will make you greedy, and it decreases when used, but knowledge will increase the more you spread it. The charity for knowledge is through its distribution among those who wish to acquire it or to narrate it. Know that God will reward associating with and following those who possess religious knowledge. Obeying them will increase the good, and eliminate the evil, and is a form of savings for the believers. It will be a source of honor during life and death, and fame after death. Know that wealth will get destroyed, as does its owner, but knowledge and those who possess it will last forever. Knowledge will rule, but wealth will be ruled.”