Sayyiduna Ibn Abbas (may Allah be pleased with them both) narrates that the Messenger of Allah (peace and blessings be upon him) said: "Charity is obligatory upon every joint of a person every day." One of the people said: This is the hardest command you have given us. The Prophet (peace and blessings be upon him) said: "Enjoining good and forbidding evil is charity. Helping a weak person by lifting his load is charity for you. Removing something harmful from the road is charity. And every step you take towards prayer is charity."
Hadith Referenceصحيح ابن خزيمه / كتاب الإمامة فى الصلاة وما فيها من السنن مختصر من كتاب المسند / 1497