Every good act is charity. Your smiling in your brother’s face, is charity; an exhortation of your fellow-man to virtuous deeds, is equal to alms-giving; your putting a wanderer in the right road, is charity; your assisting the blind, is charity; your removing stones, and thorns, and other obstructions from the road, is charity; your giving water to the thirsty, is charity.

(Other Authors and Sources)

Qur’an