Sahih al-Bukhari, 6852

Narrated `Abdullah bin `Umar:Those people who used to buy foodstuff at random (without weighing or measuring it) were beaten in the lifetime of Allah's Messenger (ﷺ) if they sold it at the very place where they had bought it, till they carried it to their dwelling places

Rapporté par `Abdullah bin `Umar : À l’époque du Messager d’Allah (ﷺ), ceux qui achetaient des denrées alimentaires sans les peser ni les mesurer et les revendaient sur place étaient frappés, jusqu’à ce qu’ils transportent ces marchandises chez eux