It is narrated from Sayyiduna Zubair bin Al-Awwam (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "It is better for a person to pick up his rope, gather firewood with it, bring it to the market, place it there, and sell it, thereby attaining self-sufficiency and spending on himself, rather than going around asking people, whether they give him or not."
Hadith Referenceمسند احمد / مسند باقي العشرة المبشرين بالجنة / 1429