مختصر صحيح بخاري
Mukhtasar Sahih Bukhari
Book of Expiation for Oaths
The Sa’ of Madinah and the Prophet’s Mudd.
Narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that the Noble Prophet (peace and blessings of Allah be upon him) said: "O Allah! Bless them (i.e., the people of Madinah) in their measures, sa’ and mudd (units of measurement)."