Narrated Al-Ju'aid bin `Abdur-Rahman: As-Sa'ib bin Yazid said, "The Sa' at the time of the Prophet 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."
Hadith ReferenceSahih Bukhari / The Book of The Expiation of Unfulfilled Oaths / Hadith: 6712
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة