Musnad Ahmad 30:2853

Mu'ammal narrated to us, Sufyan narrated to us, from Abu al-Zinad, from al-A'raj, from Abu Hurayrah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "I am more entitled to every believer than his own self. So whoever leaves behind a debt or dependents, then it is upon me. And whoever leaves behind wealth, then it is for the heir."