There is zero disagreement that interest (and more generally, "riba") is forbidden. Just a couple of references (there are way more): From the Quran: * http:/

There is zero disagreement that interest (and more generally, "riba") is forbidden. Just a couple of references (there are way more): From the Quran: * http://quran.com/2/275 http://quran.com/2/275 * http://quran.com/4/161 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]."