(71) باب سَلَفٍ وَبَيْعٍ وَهُوَ أَنْ يَبِيعَ السِّلْعَةَ عَلَى أَنْ يُسْلِفَهُ سَلَفًا
It was narrated from 'Amr bin shu'aib, from his father, from his grandfather, that:
the Messenger of Allah prohibited lending on the condition of a sale, or to have two conditions in one transaction, or to profit from what you do not posses. (DE)
Reference (DE): Sunan an-Nasa'i 4629 (DE)
In-book reference (DE): Book 44, Hadith 181 (DE)
English translation (DE): Vol. 5, Book 44, Hadith 4633 (DE)