And the Prophet Muhammad (peace be upon him) said: By Him in Whose hand is the life of Muhammad (peace be upon him), if the mountain of Uhud were to turn into gold for me, I would be pleased to spend it in the way of Allah, and not three days would pass over me with even a single dinar or dirham remaining with me, except for that which I keep aside to pay a debt that is due upon me.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 8195