Abu Huraira said that when the Prophet once visited Bilal and saw he had a heap of dates, he asked him what it was. One his replying, “It is something I have stored up for tomorrow,” he said, “Are you not afraid that tomorrow you may see on account of it steam in the fire of jahannam on the day of resurrection? Spend it, Bilal, and do not fear poverty from the Lord of the Throne.”
Baihaqi transmitted it in Shu’ab al-iman.