Sahih al-Bukhari 2251
Book 35: Sales in which a Price is paid for Goods to be Delivered Later (As-Salam) · Narrated by `Aisha
Arabic
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.
English translation
Narrated `Aisha:Allah's Messenger (ﷺ) bought some foodstuff (barley) from a Jew on credit and mortgaged his iron armor to him (the armor stands for a guarantor)
Reference: Sahih al-Bukhari 2251, Book of Sales in which a Price is paid for Goods to be Delivered Later (As-Salam). English translation by Dr. Muhammad Muhsin Khan.