(11) Business Transactions
كتاب البيوع
(7a) Chapter: Payment in Advance and Pledge - Section 1
(7) باب السلم والرهن - الفصل الأول
Mishkat al-Masabih 2884 
'A’isha said that God’s Messenger bought some grain from a Jew to be paid at a specified time, and gave him a coat of mail of his as a pledge. (Bukhari and Muslim.)
وَعَنْ عَائِشَةَ قَالَتِ: اشْتَرَى رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ طَعَامًا من يَهُودِيٍّ إِلَى أَجَلٍ وَرَهَنَهُ دِرْعًا لَهُ مِنْ حَدِيد
 مُتَّفَقٌ عَلَيْهِ  (الألباني)حكم :
Reference : Mishkat al-Masabih 2884
In-book reference : Book 11, Hadith 122