Dust of Riba...

Narrated by Ibn Isa, and recorded in Abu-Dawood Hadith #3325:

 “There will come a time when you will not be able 
to find a single person in the world who will not be 
consuming riba. And if anyone claims that he is not 
consuming riba then surely the dust of riba will reach him.”

—-
Narrated by Abu Bakr ibn Abi Maryam, and recorded in Musnad, Ahmad ibn Hanbal
The Messenger of Allah is reported to have said,

“A time is certainly coming over mankind

in which there will be nothing left that will be

of use save a Dinar and a Dirham”