Narrated As-Sa'ib bin Yazid: The Sa' (a kind of measure) during the lifetime of the Prophet used to be equal to the one Mudd (another kind of measure) and one third of a Mudd which we use today, but the Sa' of today has become large.
— Sahih Bukhari, Volume 9, Book 92: Holding Fast to the Qur'an and Sunnah, Hadith #430
Narrated As-Sa'ib bin Yazid: The Sa' (a kind of measure) during the lifetime of the Prophet used to be equal to the one Mudd (another kind of measure) and one third of a Mudd which we use today, but the Sa' of today has become large.
This hadith is from the book of Holding Fast to the Qur'an and Sunnah in Sahih Bukhari, compiled by Imam al-Bukhari. It is hadith number 430 in book 92 of volume 9.
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