Musnad Ahmad 30:3307

Ibn Numayr narrated to us, al-A‘mash narrated to us, from Abu Salih, from Abu Hurayrah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "For one of you to take a rope, then come to the mountain, gather firewood from it, sell it, and then eat and give charity, is better for him than to ask people for anything."