Sahih al-Bukhari, Book 35, Hadith 12 (In-Book) ⓘ
Narrated `Aisha: Allah's Messenger bought some foodstuff (barley) from a Jew on credit and mortgaged his iron armor to him (the armor stands for a guarantor).
حَدَّثَنَا مُحَمَّدٌ، حَدَّثَنَا يَعْلَى، حَدَّثَنَا الأَعْمَشُ، عَنْ إِبْرَاهِيمَ، عَنِ الأَسْوَدِ، عَنْ عَائِشَةَ ـ رضى الله عنها ـ قَالَتِ اشْتَرَى رَسُولُ اللَّهِ صلى الله عليه وسلم طَعَامًا مِنْ يَهُودِيٍّ بِنَسِيئَةٍ، وَرَهَنَهُ دِرْعًا لَهُ مِنْ حَدِيدٍ.
also referenced under: Hadith 2251 (DarusSalam) & Volume 3, Book 35, Hadith 453 (USC-MSA)