Musnad Ahmad 7:25

Waki’ and Ibn Numayr narrated to us, they said: Hisham bin ‘Urwah narrated to us, from his father, from his grandfather. Ibn Numayr said: From al-Zubayr, he said: The Messenger of Allah, peace and blessings of Allah be upon him, said: "For one of you to take his ropes, then come to the mountain, then come with a bundle of firewood upon his back, then sell it, and by its price Allah enriches him, is better for him than to ask the people, whether they give him or withhold from him."