Musnad Abu Ya'la al-Mawsili 115:138

Abu Khaythama narrated to us, Mu'adh ibn Hisham narrated to us, from his father, from Qatada, from Anas, that the Prophet (peace and blessings of Allah be upon him) said: "The son of Adam grows old, and two things grow young within him: greed for wealth and greed for life."