It was narrated from Husain, Mughirah, and Ibn 'Awn, from Ash-Sh'abi, from Al-Harith, from 'Ali, that:
The Messenger of Allah [SAW] cursed the one who consumes Riba, the one who pays it, the one who writes it down, and the one who withholds Sadaqah (Zakah). And he used to forbid wailing (in mourning for the dead).