Narrated Al-A'mash: We argued at Ibrahim's dwelling place about mortgaging in Salam. He said, "Aisha said, 'The Prophet bought some foodstuff from a Jew on credit and the payment was to be made by a definite period, and he mortgaged his iron armor to him."
— Sahih Bukhari, Volume 3, Book 35: Sales in which a Price is paid for Goods to be Delivered Later (As-Salam), Hadith #454
