Hadith 8:123
She said that when God’s Messenger died his coat of mail was in pledge with a Jew for thirty sa's of barley. Bukhari transmitted it.
وَعَنْهَا قَالَتْ: تُوُفِّيَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَدِرْعُهُ مَرْهُونَةٌ عِنْدَ يَهُودِيٍّ بِثَلَاثِينَ صَاعا من شعير. رَوَاهُ البُخَارِيّ
Original Reference: Mishkat al-Masabih 2885