"The one who consumes Riba, the one who pays it, and the one who writes it down, if they know that it is Riba; the woman who does tattoos and the woman who has that done for the purpose of beautification; the one who withholds Sadaqah (Zakah); and the one who reverts to the life of a Bedouin after having emigrated- they will (all) be cursed upon the tongue of Muhammad on the Day of Resurrection."
Sunan an-Nasa'i Book 48, Hadith 63