Musnad Ahmad 33:1059

'Abd al-Razzaq narrated to us, Sufyan informed us, and Abu Nu'aym, Sufyan narrated to us, from Abu al-Zubayr, from Jabir, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Retain your wealth for yourselves, and do not give it to anyone. For whoever is granted a life-tenancy (umra) of something, it belongs to him."