Mukhtasar Bukhari (Abridged) 993 — A man earning by his own hand

Sayyiduna Miqdam (may Allah be pleased with him) narrates from the Noble Prophet (peace and blessings be upon him) that he (peace and blessings be upon him) said: "No person has eaten food better than that earned by his own hands, and Allah's Prophet Dawud (peace be upon him) used to eat from what he earned with his own hands."