´It was narrated from Ibn 'Abbas that the Propher said:` "Paying in advance for the offspring of the offspring of a pregnant animal (Habal al-Habalah) is Riba''
Hadith ReferenceSunan an-Nasa'i / The Book of Financial Transactions / Hadith: 4626
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:إسناده صحيح