On the authority of Abu Hurairah, who said: The messenger of Allah said :

"Each person's every joint must perform a charity every day the sun comes up : to act justly between two people is a charity; to help a man with his mount, lifting him onto it or hoisting up his belongings onto it is a charity: a good word is a charity, every step you take to prayers is a charity and removing a harmful thing from the road is a charity."

related by Bukhari and Muslim.