Sahih al-Bukhari 4467
Book 64: Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi) · Narrated by `Aisha
Arabic
حَدَّثَنَا قَبِيصَةُ، حَدَّثَنَا سُفْيَانُ، عَنِ الأَعْمَشِ، عَنْ إِبْرَاهِيمَ، عَنِ الأَسْوَدِ، عَنْ عَائِشَةَ ـ رضى الله عنها ـ قَالَتْ تُوُفِّيَ النَّبِيُّ صلى الله عليه وسلم وَدِرْعُهُ مَرْهُونَةٌ عِنْدَ يَهُودِيٍّ بِثَلاَثِينَ. {يَعْنِي صَاعًا مِنْ شَعِيرٍ}
English translation
Narrated `Aisha:The Prophet (ﷺ) died while his armor was mortgaged to a Jew for thirty Sa's of barley
Reference: Sahih al-Bukhari 4467, Book of Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi). English translation by Dr. Muhammad Muhsin Khan.