The Office of the Judge (Kitab Al-Aqdiyah)

Dawud :: Book 24 : Hadith 3597

Narrated Abdullah ibn Amr ibn al-'As:

The Apostle of Allah (peace_be_upon_him) said: The proviso of a loan combined with a sale is not allowable, nor two conditions relating to one transaction, nor the profit arising from something which is not in one's charge, nor selling what is not in your possession.