* The Prophet, Peace be upon him, said: "There will certainly come a time for mankind when everyone will take riba and if he does not do so, its dust will reach him."
* The Prophet, Peace be upon him, cursed the receiver and the payer of interest, the one who records it and the two witnesses to the transaction and said: "They are all alike [in guilt]."
From the Quran:
* http://quran.com/2/275
* http://quran.com/4/161
From the Hadith:
* The Prophet, Peace be upon him, said: "There will certainly come a time for mankind when everyone will take riba and if he does not do so, its dust will reach him."
* The Prophet, Peace be upon him, cursed the receiver and the payer of interest, the one who records it and the two witnesses to the transaction and said: "They are all alike [in guilt]."