Sahih Bukhari Volume 003, Book 041, Hadith Number 571.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 41. Loans, Payment of Loans, Freezing of Property, Bankruptcy.
Narated By Al-Amash : When we were with Ibrahim, we talked about mortgaging in deals of Salam. Ibrahim narrated from Aswad that 'Aisha had said, "The Prophet bought some foodstuff on credit from a Jew and mortgaged an iron armor to him."