Sahih al-Bukhari #6712 · Expiation for Unfulfilled Oaths

Sahih al-BukhariAl-Ju'aid bin 'Abdur-Rahman
Sahih al-Bukhari · Book 84 · Expiation for Unfulfilled Oaths
Sahih al-Bukhari · كتاب 84 · كتاب كفارات الأيمان
As-Sa'ib bin Yazid said, "The Sa' at the time of the Prophet (ﷺ) was equal to one Mudd plus one-third of a Mudd of your time, and then it was increased in the time of Caliph 'Umar bin 'Abdul 'Aziz
حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا الْقَاسِمُ بْنُ مَالِكٍ الْمُزَنِيُّ، حَدَّثَنَا الْجُعَيْدُ بْنُ عَبْدِ الرَّحْمَنِ، عَنِ السَّائِبِ بْنِ يَزِيدَ، قَالَ كَانَ الصَّاعُ عَلَى عَهْدِ النَّبِيِّ صلى الله عليه وسلم مُدًّا وَثُلُثًا بِمُدِّكُمُ الْيَوْمَ فَزِيدَ فِيهِ فِي زَمَنِ عُمَرَ بْنِ عَبْدِ الْعَزِيزِ‏.‏
Reference : Sahih al-Bukhari 6712In-book reference : Book 84, Hadith 5