Sayyiduna Jabir (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "Beware of greed, for it is poverty itself, and beware of those things for which one has to apologise."
Al-Tabarani recorded it in al-Mu'jam al-Awsat; its chain contains Muhammad bin Abi Humayd, whose weakness is agreed upon.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الزهد / 17823