Abu Dharr quoted the Prophet (Peace and blessing of Allah be upon him) as saying: "Pouring water from your bucket into that of your brother will count in your favor as charity. Promoting good and forbidding evil will count as charity. Smiling in the face of your brother is charity. Removing stones, thorns, and bones from the public highway is charity. Giving directions to a man who has lost his way is an act of charity for you."

Imam al-Bukhari in Moral Teachings of Islam by Abdul Ali Hamid, translator