Musnad Ahmad 30:2765

Muhammad ibn Ja'far narrated to us, Shu'bah narrated to us, from Muhammad ibn Ziyad, who said: I heard Abu Hurairah narrating from the Prophet, may Allah bless him and grant him peace, that he said: "I would not love for myself the equivalent of Uhud in gold—Shu'bah said: Or he said: I would not love for myself Uhud in gold—that I should leave behind a single dinar on the day I die, except for one that I keep for the sake of a debt."