أَخْبَرَنِي مُحَمَّدُ بْنُ آدَمَ، عَنْ حَفْصِ بْنِ غِيَاثٍ، عَنِ الأَعْمَشِ، عَنْ إِبْرَاهِيمَ، عَنِ الأَسْوَدِ، عَنْ عَائِشَةَ، قَالَتِ اشْتَرَى رَسُولُ اللَّهِ صلى الله عليه وسلم مِنْ يَهُودِيٍّ طَعَامًا إِلَى أَجَلٍ وَرَهَنَهُ دِرْعَهُ ‏.‏

It was narrated that 'Aishah said: "The Messenger of Allah bought some food from a Jew with payment to be made later, and he put his shield in pledge for that." Translation Not Available

Book Ref: Sunan An Nisai Book 44 Hadith 4609
Web Ref:  Sunan An Nisai Vol 5 Book 44 Hadith 4613