Narrator
It was narrated from Ibn 'Abbas that the Propher said
Sunan an-Nasa'i #4622The Book of Financial Transactions
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
Sunan an-Nasa'i #4847The Book of Oaths (qasamah), Retaliation and Blood Money
It was narrated from Ibn 'Abbas that the Propher said: "this and this are the same,": meaning the little finger and the thumb