It was narrated that Jabir said:
'The Messenger of Allah (ﷺ) forbade selling food bought by measure until two Sa' have been measured - the Sa' of the seller and the Sa' of the buyer."[1] (ID)
English reference (ID): Vol. 3, Book 12, Hadith 2228 (ID)
Arabic reference (ID): Book 12, Hadith 2313 (ID)