Hadithcore
Musnad Ahmad 4026
graded

It was narrated that 'Abdullah - he (i.e. Shareek) narrated it to us

as a marfoo’ report the first time, then he stopped narrating it as marfoo’- said: "Even if riba increases, it will ultimately lead to less.”

References1 variant
Arabic/English book
Book 26, Hadith 4026