Musannaf Ibn Abi Shayba 33:71

Yazid ibn Harun narrated to us, he said: Isma'il al-Makki and Mubarak informed us, from al-Hasan, who said: Luqman said to his son: "O my son, I have carried boulders and iron, yet I have not seen anything heavier than a bad neighbor. And I have tasted all bitterness, yet I have not seen anything more bitter than poverty."