Here is the hadith:
Hazrat Abu Hurairah r.a. reported that the Prophet (s.a.w.) said : A time will certainly come over the people when none will remain who will not devour usury. If he does not devour it, its vapour will overtake him. [Ahmed,Abu Dawood,Nisai,Ibn Majah]
Muttaqun OnLine - Riba: According to Quran and Sunnah