Samurah bin Jundub (RAA) narrated that The Messenger of Allah (ﷺ) used to command us to pay Zakah from (the goods) we had prepared for sale. Related by Abu Dawud with a weak chain of narrators. (IT)
English reference (IT): Book 4, Hadith 644 (IT)
Arabic reference (IT): Book 4, Hadith 623 (IT)